LPUNEST 2025 Question Paper with Solution PDF

LPU National Entrance and Scholarship Test eligibility & scholarship test is the national-level entrance test conducted by Lovely Professional University (LPU), Punjab. This entrance examination is the way through which candidates can get admission to various programs offered by LPU, ranging from B.Tech/B.Sc to MBA/M.Tech. LPUNEST was conducted as one of the steps of admission into the various programs being offered at Lovely Professional University.

Both the LPU NEST question paper and the full solution key are available as free PDFs. Students should try solving the paper in a timed setting first, then check the answers.

Knowing the LPUNEST exam structure is the first step to strategic preparation. Check the below table for LPUNEST exam structure:

Subject-wise Distribution

Q.1: 10⁻⁶ M NaOH is diluted 100 times. The pH of the diluted base is:

(A) between 7 and 8
(B) between 5 and 6

(C) between 6 and 7

(D) between 10 and 11

Correct Answer: (A) Between 7 and 8

After dilution by 100 times, [NaOH] new = 10⁻⁸ M. Since this concentration is extremely dilute, the OH⁻ contribution of water (10⁻⁷ M) must also be considered. Total [OH⁻] = 10⁻⁸ + 10⁻⁷ = 1.1 × 10⁻⁷ M. This gives pOH ≈ 6.96 and pH ≈ 7.04 — slightly above 7, confirming it lies between 7 and 8.

Quick Tip: For very dilute acids or bases (≤10⁻⁶ M), always include the water contribution (10⁻⁷ M OH⁻) when calculating pH or pOH.

Q.2: To obtain 1.12 cc of H₂ per second at STP via electrolysis of acidulated water, the current required is:

(A) 1.93 A
(B) 9.65 A
(C) 19.3 A
(D) 0.965 A

Correct Answer: (B) 9.65 A

Moles of H₂ per second = 1.12 / 22400 = 5 × 10⁻⁵ mol/s. Since 2H⁺ + 2e⁻ → H₂, two moles of electrons are needed per mole of H₂. Current = 5 × 10⁻⁵ × 2 × 96500 = 9.65 A.

Quick Tip: At STP, always use 22400 cc/mol for gases and 1 Faraday = 96500 C when applying Faraday's laws of electrolysis.

Q.3: The one which decreases with dilution is:

(A) molar conductance

(B) conductance

(C) specific conductance

(D) equivalent conductance

Correct Answer: (C) Specific Conductance

On dilution, the number of ions per unit volume decreases, so specific conductance decreases. Molar and equivalent conductance both increase with dilution as ions have greater freedom of movement.

Quick Tip: Specific conductance decreases with dilution. Molar and equivalent conductance increase with dilution.

Q.4: Vapour pressure of pure A is 70 mm Hg. Mole fraction of A in solution is 0.8. If total vapour pressure is 84 mm Hg, the vapour pressure of pure B is:

(A) 28 mm
(B) 56 mm
(C) 70 mm
(D) 140 mm

Correct Answer: (D) 140 mm Hg

By Raoult's Law: P total = xA × P°A + xB × P°B. Substituting: 84 = (0.8)(70) + (0.2) P°B → 84 = 56 + 0.2 P°B → P°B = 28 / 0.2 = 140 mm Hg.

Quick Tip: For ideal solutions, use Raoult's Law and remember that mole fractions always add up to 1 (xB = 1 − xA = 0.2).

Q.5: A 6% solution of urea is isotonic with:

(A) 1 M solution of glucose
(B) 0.05 M solution of glucose
(C) 6% solution of glucose
(D) 25% solution of glucose

Correct Answer: (A) 1 M solution of glucose

A 6% urea solution means 6 g per 100 mL or 60 g per litre. Molar mass of urea = 60 g/mol, so molarity = 1 M. Both urea and glucose are non-electrolytes (i = 1), so for isotonic solutions, their molarities must be equal. Hence, a 6% urea solution is isotonic with a 1 M glucose solution.

Q.6: In polar countries, roads are sprinkled with CaCl₂ to:

(A) to minimise the wear and tear of the roads
(B) to minimise the snow fall
(C) to minimise pollution
(D) to minimise the accumulation of dust on the road

Correct Answer: (B) Minimise snowfall / accumulation of snow

CaCl₂ dissociates into Ca²⁺ and 2Cl⁻, increasing the number of solute particles. This causes significant freezing point depression, preventing water from freezing and acting as a de-icing agent on roads.

Quick Tip: Salts like CaCl₂ are used as de-icing agents because they produce more ions, leading to greater freezing point depression.

Q.7: In a cubic lattice, A atoms occupy corners and B atoms occupy face centres. The empirical formula is:

(A) AB2
(B) A2B
(C) AB
(D) AB3

Correct Answer: AB₃

Effective A atoms = 8 corners × (1/8) = 1. Effective B atoms = 6 face centres × (1/2) = 3. Ratio A:B = 1:3, giving the empirical formula AB₃.

Quick Tip: Corner atom = 1/8 contribution; Face-centre atom = 1/2 contribution; Body-centre = 1 full atom.

Q.8: In electrophilic aromatic substitution reaction, the nitro group is meta directing because it:

(A) decreases electron density at ortho and para positions
(B) decreases electron density at meta position
(C) increases electron density at meta position
(D) increases electron density at ortho and para position

Correct Answer: (A) decreases electron density at ortho and para positions

The nitro group (−NO₂) is a strong electron-withdrawing group due to −I and −M effects. It pulls electron density away from the benzene ring, especially from ortho and para positions. This makes these positions less reactive, so substitution occurs at the meta position.

Q.9: The best method for conversion of an alcohol into an alkyl chloride is by treating with:

(A) PCl₅
(B) PCl₃
(C) SOCl₂ in presence of pyridine
(D) dry HCl in the presence of anhydrous ZnCl₂

Correct Answer: (C) SOCl₂ in presence of pyridine

SOCl₂ (thionyl chloride) reacts as:
ROH + SOCl₂ → RCl + SO₂ + HCl

The gaseous by-products (SO₂ and HCl) escape, driving the reaction forward. Pyridine absorbs HCl and prevents side reactions, making this the cleanest method.

Q.10: Carbon bond length in benzene is:

(A) between C₂H₆ and C₂H₄
(B) same as C₂H₄
(C) between C₂H₆ and C₂H₂
(D) between C₂H₄ and C₂H₂

Correct Answer: (A)
Benzene bond length = 1.39 Å
Between single (1.54 Å) and double (1.34 Å) due to resonance.

Quick Tip: Benzene bond order = 1.5.

Q.11: I go to Madurai by —— Vaigai Express.

(A) a
(B) an
(C) some
(D) the

Correct Answer: (D) the
“Vaigai Express” is a specific train name, so the definite article “the” is used before names of trains.

Quick Tip: Use “the” before names of trains, rivers, newspapers.

Q.12: Assets

(A) liabilities
(B) responsibilities
(C) estates
(D) profits

Correct Answer: (A) liabilities
Assets = things owned; liabilities = obligations/debts → opposite meanings.

Quick Tip: Standard pair → Assets ↔ Liabilities.

Q.13: Affidavit

(A) Affirmation
(B) Slander
(C) Oath
(D) Testimony

Correct Answer: (B) Slander
Affidavit = sworn truthful statement; slander = false damaging statement → opposite.

Quick Tip: Legal truth words vs falsehood words are opposites.

Q.14: Atheist

(A) Skeptic
(B) Pagan
(C) Disciple
(D) Agnostic

Correct Answer: (C) Disciple
Atheist = does not believe in God; disciple = follower/believer → opposite.

Quick Tip: Atheist ↔ Believer/Disciple.

Q.15: The ______ of gurudakshina is very ancient.

(A) habit
(B) approach
(C) perception
(D) concept

Correct Answer: (D) concept

The sentence refers to an idea or tradition → “concept” fits best.

Quick Tip: Use “concept/idea” for traditions or philosophies.

Q.16: Mandarin Chinese is spoken by people.

(A) Little
(B) Few
(C) Many
(D) Big

Correct Answer: (C) Many
“Spoken by millions” clearly indicates a large number → many.

Quick Tip: “Many” = large number (countable).

Q.17: A person good at foreign languages is called:

(A) Virtuoso
(B) Linguist
(C) Ventriloquist
(D) Scholar

Correct Answer: (B) Linguist
A linguist specializes in languages.

Quick Tip: Linguist = language expert.

Q.18: ______ are regional variations of a language.

(A) English
(B) Mandarin Chinese
(C) Home language
(D) Dialects

Correct Answer: (D) Dialects
Dialects are variations in pronunciation, grammar, vocabulary.

Quick Tip: Dialect = regional variation.

Q.19: Sahil said, “Where will I be this time next year!”

(A) asked…
(B) worried…
(C) wondered…
(D) said…

Correct Answer: (C)
Correct indirect speech: “Sahil wondered where he would be that time the following year.”

Quick Tip: Use “wondered” for exclamatory curiosity.

Q.20: Objective of socialist government is to ______ miseries of the poor.

(A) Mollify
(B) mitigate
(C) soothe
(D) abet

Correct Answer: (B) mitigate
Mitigate = reduce suffering → correct fit.

Quick Tip: Mitigate = lessen severity.

Q.21: Rule of thumb

(A) rough measure
(B) practical guide
(C) force work
(D) enforce discipline

Correct Answer: (B)
Means a general practical guideline based on experience.

Quick Tip: Idioms rarely match literal meaning.

Q.22: The young man was carried by the passionate appeal…

(A) carried towards
(B) carried off
(C) got carried away by
(D) No improvement

Correct Answer: (C)
Correct idiomatic expression: “got carried away by” = emotionally influenced.

Quick Tip: “Carried away” = emotionally affected.

Q.23: To leave suddenly and secretly

(A) Scare
(B) Linger
(C) Decamp
(D) Loiter

Correct Answer: (C) Decamp
Decamp = leave secretly or suddenly.

Quick Tip: Decamp = escape quietly.

Q.24: Sentence arrangement

Correct sequence of P, Q, R

Correct Answer: (D) PQR
Logical flow:
“However the major drawback of this process is that there is no legally binding outcome at the end of six years.”

Quick Tip: Start with phrase that completes opening.

Q.25: Correctly spelt word

(A) Rosetes
(B) Reaffirm
(C) Estimate
(D) Lunchon

Correct Answer: (B) Reaffirm
Other options contain spelling errors.

Quick Tip: Watch for missing letters (e.g., luncheon, rosettes).

Q.26: Identify error in sentence

(A) I am certain that
(B) The officer is not only
(C) greedy but corrupt
(D) No error

Correct Answer: (C) greedy but corrupt
The correct structure is “not only … but also”. Missing “also”.

Quick Tip: Always use complete pair → not only…but also

Q.27: Haste

(A) Soon
(B) Eventually
(C) Later
(D) Never

Correct Answer: (B) Eventually
Haste = quickness; eventually = after delay → opposite.

Quick Tip: Opposites often reflect speed vs delay.

Q.28: {x : x² ≤ 4, x ∈ integers}

(A) {−2, 2}
(B) {−1, 0, 1}
(C) {−2, −1, 0, 1, 2}
(D) {0, 1, 2}

Correct Answer: (C)
x² ≤ 4 ⇒ −2 ≤ x ≤ 2 → all integers included.

Quick Tip: Square inequalities include ± values.

Q.29: Missing ordered triplets in P×P×P, P={1,2}

(A) (1,2),(2,1)
(B) (1,2,1),(2,1,1)
(C) (1,2,2),(2,1,2)
(D) (1,2,2),(2,1,1)

Correct Answer: (D)
Total triplets = 2³ = 8; compare and find missing ones.

Quick Tip: Cartesian product size = n³.

Q.30: a + ib > c + id valid only when:

(A) b=0, c=0
(B) b=0, d=0
(C) a=0, c=0
(D) a=0, d=0

Correct Answer: (B)
Inequalities apply only to real numbers → imaginary parts must be zero.

Quick Tip: Complex numbers cannot be ordered unless imaginary part = 0.

Q.31: Sum of AP = 116, find last term

(A) 4
(B) 3
(C) 2
(D) −4

Correct Answer: (A) 4
a = 25, d = −3
Solve Sn = n/2 [2a + (n−1)d] ⇒ n = 8
Last term = 25 + 7(−3) = 4

Quick Tip: First find n, then last term.

Q.32: Number of factor pairs of 7056

(A) 20
(B) 21
(C) 23
(D) 22

Correct Answer: (C) 23
7056 = 84² → total factors = 45
Pairs = (45+1)/2 = 23

Quick Tip: Perfect square ⇒ pairs = (n+1)/2

Q.33: 5-digit numbers starting with 67 (no repetition)

(A) 336
(B) 337
(C) 335
(D) None

Correct Answer: (A) 336
Remaining digits = 8
Ways = 8P3 = 8×7×6 = 336

Quick Tip: Use permutation when order matters.

Q.34: Terms in (x+a)¹⁰⁰ + (x−a)¹⁰⁰

(A) 202
(B) 51
(C) 50
(D) None

Correct Answer: (B) 51
Only even powers remain → count = 100/2 +1 = 51

Quick Tip: Odd terms cancel in symmetric expansions.

Q.35: If (x−2) is factor, find (b−d)/(c−a)

(A) −2
(B) −1
(C) 1
(D) 2

Correct Answer: (D) 2
Substitute x=2 → solve equations → result = 2

Quick Tip: Use f(k)=0 for factors.

Q.36: Solve −3x + 17 < −13

(A) (10, ∞)
(B) [10, ∞)
(C) (−∞, 10)
(D) [−10,10)

Correct Answer: (A)
−3x < −30 ⇒ x > 10

Quick Tip: Reverse sign when dividing by negative.

Q.37: Matrix equality → find a, b

(A) a=2, b=1,2
(B) a=1, b=3
(C) a=−2, b=1/2, −1
(D) None

Correct Answer: (C)
Compare elements and solve system → a = −2, b = 1/2 or −1

Quick Tip: Equal matrices ⇒ corresponding elements equal.

Q.38: Determinant of orthogonal matrix

(A) ±1
(B) 2
(C) 0
(D) ±2

Correct Answer: (A) ±1
Orthogonal matrices preserve length → determinant magnitude = 1

Quick Tip: |A| = ±1 for orthogonal matrices.

Q.39: If cosx = tany, coty = tanz, cotz = tanx → sinx = ?

(A) (√5+1)/4
(B) (√5−1)/4
(C) (√5+1)/2
(D) (√5−1)/2

Correct Answer: (B)

Explanation: Solving cyclic relations gives sinx = (√5−1)/4

Quick Tip: Use substitution in cyclic trig equations.

Q.40: tan⁻¹(1) − sec⁻¹(2)

(A) π
(B) π/3
(C) π/6
(D) 2π/3

Correct Answer: (C) π/6
tan⁻¹(1)=π/4, sec⁻¹(2)=π/3
Difference = π/4 − π/3 = π/6

Quick Tip: Remember standard inverse values.

Q.41: Rate of increase of area (r=20 cm, dr/dt=2)

(A) 80π m²/s
(B) 80 m²/s
(C) 80π cm²/s
(D) 80 cm²/s

Correct Answer: (C) 80π cm²/s
Area = πr² ⇒ dA/dt = 2πr dr/dt
= 2π × 20 × 2 = 80π

Quick Tip: Differentiate before substituting values.

Q.42: ∫ dx/(x−5)²

(A) 1/(x−5) + C
(B) −1/(x−5) + C
(C) 2/(x−5)³ + C
(D) −2(x−5)⁻³ + C

Correct Answer: (B)
∫ (x−5)⁻² dx = −(x−5)⁻¹

Quick Tip: ∫ xⁿ dx = xⁿ⁺¹/(n+1)

Q.43: Order & degree of DE

Correct Answer: (A) 2, 2
Highest derivative = second → order = 2
Degree after removing root = 2

Quick Tip: Degree defined after removing radicals.

Q.44: Triangle with points (1,1), (−1,−1)

(A) Right angled
(B) Isosceles
(C) Equilateral
(D) None

Correct Answer: (B) Isosceles

Quick Tip: Equal distances → isosceles.

Q.45: Circle 2x² + 2y² = 3x − 5y + 7

Correct Answer: (A)
Centre = (3/4, −5/4), radius = 3√10/4

Quick Tip: Complete square method.

Q.46: 13x² − 18xy + 37y² + …

(A) Circle
(B) Ellipse
(C) Parabola
(D) Hyperbola

Correct Answer: (B) Ellipse
Discriminant < 0 ⇒ ellipse

Quick Tip: Use B²−4AC test.

Q.47: λ(3i + 2j − 2k) unit vector

(A) ±1/7
(B) ±7
(C) ±√43
(D) ±1/√43

Correct Answer: (D)
Magnitude = √(9+4+4)=√17
λ = ±1/√17

Quick Tip: Unit vector ⇒ magnitude = 1.

Q.48: Direction cosines perpendicular to both lines

Correct Answer: (D)

Quick Tip: Use cross product for perpendicular direction.

Q.49: New mean after adding series

(A) x̄ + 3/(n+1)2n
(B) x̄ + 3(3ⁿ−1)/3ⁿ
(C) x̄ + 3/n 3ⁿ
(D) x̄ + 3(3ⁿ−1)/2n

Correct Answer: (D)

Quick Tip: Mean shift = sum of added values / n.

Q.50: Probability both children are boys

(A) 1/2
(B) 1/3
(C) 1/4
(D) 2/5

Correct Answer: (C) 1/4
Possible outcomes = {BB, BG, GB, GG} → only 1 favorable.

Quick Tip: Independent events ⇒ multiply probabilities.

Q.51: Which statement is NOT correct?

(A) au = θ ⇒ either a = 0 or u = θ
(B) |−1·u| = |−1||u|
(C) aθ = θ
(D) 0u = θ

Correct Answer: (A)
In vector spaces, au = θ does not always imply a = 0 or u = θ (depends on field properties).

Quick Tip: Be cautious—scalar multiplication properties are not always reversible.

Q.52: f(x) = x + |x| is continuous for:

(A) (−∞, ∞)
(B) (−∞, ∞) − {0}
(C) only x > 0
(D) no value

Correct Answer: (A)
For x ≥ 0 → f(x)=2x
For x < 0 → f(x)=0
At x=0, both sides equal → continuous everywhere.

Quick Tip: Check continuity at point of modulus (x=0).

Q.53: Error in sentence

(A) He was in the temper
(B) and refused
(C) discuss the matter again
(D) No error

Correct Answer: (A)
Correct phrase: “in a temper”

Quick Tip: Use correct idiomatic expressions.

Q.54: Spot error

(A) She
(B) went
(C) straightly
(D) home

Correct Answer: (C)
Correct word is “straight”, not “straightly”.

Quick Tip: Many adverbs don’t take “-ly” (e.g., fast, straight).

Q.55: Find error

(A) Go North-East
(B) across the mountains
(C) till you will reached an island
(D) No error

Correct Answer: (C)
Correct form: “till you reach” (no “will”).

Quick Tip: Avoid future tense after “till/when”.

Q.56: To sleep with the fishes

(A) dream world
(B) absurd excuses
(C) sleep peacefully
(D) be dead

Correct Answer: (D) be dead

Quick Tip: Idioms often imply figurative meanings.

Q.57: Philosophy of putting others’ welfare above own

(A) polytheism
(B) altruism
(C) iconoclasm
(D) agnosticism

Correct Answer: (B) altruism

Quick Tip: Altruism = selfless concern for others.

Q.58: Error in sentence

(A) Mango, the most unique fruit
(B) is available in India
(C) in plenty
(D) No error

Correct Answer: (A)
“Most unique” is incorrect—unique cannot be compared.

Quick Tip: Absolute adjectives (unique, perfect) don’t take “most”.

Q.59: Arrange letters T R I F U

(A) 3 1 2 4 5
(B) 4 2 5 3 1
(C) 4 3 2 1 5
(D) 5 3 2 1 4

Correct Answer: (B)
Forms word: FRUIT

Quick Tip: Look for meaningful common words.

Q.60: Error in sentence

(A) If I was you
(B) I would not attend
(C) the function
(D) No error

Correct Answer: (A)
Correct form: “If I were you”

Quick Tip: Use “were” in hypothetical conditions.

Q.61: Temperature can be expressed as derived quantity in terms of:

(A) length and mass
(B) mass and time
(C) length, mass and time
(D) none

Correct Answer: (D) none
Temperature is a fundamental quantity, not derived from L, M, T.

Quick Tip: SI base quantities → length, mass, time, temperature, etc.

Q.62: Dimensional formula of force is:

(A) ML⁻¹T⁻²
(B) MLT⁻²
(C) ML²T⁻²
(D) MLT⁻¹

Correct Answer: (B) MLT⁻²
Force = mass × acceleration → M × (LT⁻²)

Quick Tip: Always derive from basic definition.

Q.63: Work done when force and displacement are perpendicular:

(A) maximum
(B) minimum
(C) zero
(D) infinite

Correct Answer: (C) zero
W = Fd cosθ; θ = 90° → cos90 = 0

Quick Tip: Perpendicular force does no work.

Q.64: Escape velocity depends on:

(A) mass of body only
(B) radius only
(C) both mass & radius
(D) independent of both

Correct Answer: (C)
v = √(2GM/R)

Quick Tip: Escape velocity independent of object mass.

Q.65: Unit of electric field:

(A) V/m
(B) V
(C) A/m
(D) ohm

Correct Answer: (A) V/m

Quick Tip: E = Force/charge = N/C = V/m.

Q.66: Resistance increases with:

(A) increase in temperature (metal)
(B) decrease in temperature
(C) no change
(D) none

Correct Answer: (A)
In metals, resistance ↑ with temperature due to collisions.

Quick Tip: Metals: R ↑ with T; semiconductors: opposite.

Q.67: Magnetic field inside solenoid is:

(A) zero
(B) uniform
(C) decreasing
(D) increasing

Correct Answer: (B) uniform

Quick Tip: Long solenoid → uniform field inside.

Q.68: Unit of power:

(A) joule
(B) watt
(C) newton
(D) volt

Correct Answer: (B) watt

Quick Tip: Power = work/time.

Q.69: Speed of light in vacuum is:

(A) 3×10⁶ m/s
(B) 3×10⁸ m/s
(C) 3×10¹⁰ m/s
(D) 3×10⁵ m/s

Correct Answer: (B)

Quick Tip: c = 3 × 10⁸ m/s (must memorize).

Q.70: Lens used to correct myopia:

(A) convex
(B) concave
(C) plane
(D) cylindrical

Correct Answer: (B)
Concave lens diverges rays → corrects myopia.

Quick Tip: Myopia → concave; Hypermetropia → convex.

Q.71: SI unit of frequency:

(A) hertz
(B) second
(C) meter
(D) joule

Correct Answer: (A)

Quick Tip: Frequency = cycles/sec.

Q.72: Energy stored in capacitor:

(A) CV
(B) ½CV²
(C) CV²
(D) ½C²V

Correct Answer: (B)

Quick Tip: Always remember ½CV².

Q.73: Sound cannot travel in:

(A) solid
(B) liquid
(C) gas
(D) vacuum

Correct Answer: (D)

Quick Tip: Sound needs medium.

Q.74: SI unit of pressure:

(A) bar
(B) pascal
(C) atm
(D) newton

Correct Answer: (B)

Quick Tip: Pressure = Force/Area.

Q.75: Kinetic energy formula:

(A) mv
(B) mv²
(C) ½mv²
(D) m²v

Correct Answer: (C)

Quick Tip: Always include ½ factor.

Q.76: Acceleration due to gravity (g):

(A) 9.8 m/s²
(B) 8.9 m/s²
(C) 10.8 m/s²
(D) 9.2 m/s²

Correct Answer: (A)

Quick Tip: Standard value = 9.8 m/s².

Q.77: Work done in circular motion:

(A) zero
(B) maximum
(C) minimum
(D) infinite

Correct Answer: (A)
Force is centripetal → perpendicular → no work.

Quick Tip: Same concept as Q63.

Q.78: Unit of charge:

(A) coulomb
(B) ampere
(C) volt
(D) ohm

Correct Answer: (A)

Quick Tip: Q = It.

Q.79: Current is flow of:

(A) protons
(B) electrons
(C) neutrons
(D) atoms

Correct Answer: (B)

Quick Tip: In metals → electrons move.

Q.80: Potential difference unit:

(A) watt
(B) volt
(C) ampere
(D) coulomb

Correct Answer: (B)

Quick Tip: V = W/Q.

Q.81: Unit of momentum:

(A) kg m/s
(B) N/m
(C) J/s
(D) kg m²

Correct Answer: (A) kg m/s
Momentum = mass × velocity → kg·m/s

Quick Tip: Momentum unit = same as impulse.

Q.82: Newton’s second law states:

(A) F = ma
(B) F = mv
(C) F = m/v
(D) F = v/m

Correct Answer: (A)

Quick Tip: Force = rate of change of momentum.

Q.83: Work-energy theorem states:

(A) KE = PE
(B) Work = change in KE
(C) Work = force
(D) Energy = force

Correct Answer: (B)

Quick Tip: W = ΔKE.

Q.84: Frequency of wave is inversely proportional to:

(A) wavelength
(B) velocity
(C) amplitude
(D) energy

Correct Answer: (A)
v = fλ → f ∝ 1/λ

Quick Tip: If speed constant → inverse relation.

Q.85: Ohm’s law:

(A) V = IR
(B) V = I/R
(C) R = VI
(D) V = R/I

Correct Answer: (A)

Quick Tip: Linear relation between V and I.

Q.86: SI unit of capacitance:

(A) farad
(B) henry
(C) ohm
(D) volt

Correct Answer: (A)

Quick Tip: C = Q/V.

Q.87: Magnetic field around straight conductor:

(A) straight lines
(B) circular lines
(C) random
(D) zero

Correct Answer: (B)

Quick Tip: Use right-hand thumb rule.

Q.88: SI unit of inductance:

(A) henry
(B) farad
(C) tesla
(D) ohm

Correct Answer: (A)

Quick Tip: Inductance relates to magnetic flux.

Q.89: Power of lens =

(A) 1/f
(B) f
(C) f²
(D) 1/f²

Correct Answer: (A)

Quick Tip: Power unit = diopter.

Q.90: Refraction occurs due to:

(A) change in speed
(B) change in direction
(C) reflection
(D) absorption

Correct Answer: (A)

Quick Tip: Speed change ⇒ bending.

Q.91: Energy of photon depends on:

(A) frequency
(B) wavelength
(C) speed
(D) medium

Correct Answer: (A)
E = hν

Quick Tip: Higher frequency → higher energy.

Q.92: Nuclear force is:

(A) weak
(B) strong
(C) electromagnetic
(D) gravitational

Correct Answer: (B)

Quick Tip: Strongest fundamental force.

Q.93: SI unit of electric flux:

(A) Nm²/C
(B) volt
(C) ampere
(D) coulomb

Correct Answer: (A)

Quick Tip: Derived from Gauss law.

Q.94: Half-life depends on:

(A) temperature
(B) pressure
(C) nature of substance
(D) mass

Correct Answer: (C)

Quick Tip: Radioactive decay is intrinsic property.

Q.95: Work done by conservative force over closed path:

(A) zero
(B) maximum
(C) minimum
(D) infinite

Correct Answer: (A)

Quick Tip: Path independent → zero work.

Q.96: SI unit of magnetic flux:

(A) weber
(B) tesla
(C) henry
(D) ampere

Correct Answer: (A)

Quick Tip: Φ = BA.

Q.97: Speed of sound depends on:

(A) medium
(B) temperature
(C) density
(D) all

Correct Answer: (D)

Quick Tip: v ∝ √(elasticity/density).

Q.98: Current in conductor depends on:

(A) voltage
(B) resistance
(C) both
(D) none

Correct Answer: (C)

Quick Tip: I = V/R.

Q.99: SI unit of work:

(A) joule
(B) watt
(C) newton
(D) pascal

Correct Answer: (A)

Quick Tip: Work = Force × distance.

Q.100: Gravitational force is:

(A) repulsive
(B) attractive
(C) neutral
(D) none

Correct Answer: (B)

Quick Tip: Gravity always attracts.

LPUNEST preparation becomes easy with proper planning and consistency. LPUNEST tests you on fundamentals, speed, and precision. With an effective preparation strategy, you can easily prepare without any hassle. Check below the steps to prepare for LPUNEST:
1. Know Exam Pattern & Syllabus: First understand subjects and marking pattern.
2. Learn Basics (NCERT Books): Learn all basics with help of NCERT books and some basic books.
3. Solve Previous Year Papers: It will give an idea about difficulty level of exam.
4. Give Mock Test: Mock test is essential for improving your time management and accuracy.
5. Plan your Study: Make a simple study plan for yourself and stick to it.
6. Regular Revision: Every week revise important formula, concepts, and notes.
7. Cover Weak Topics: Give extra attention to those topics in which you generally commit mistakes.
8. Time Management in Exam: In exam start answering those questions which you find easy.
9. Avoid Blind Guessing: Accuracy is the key in competitive exams.
10. Be Consistent & Confident: Keep working hard every day without pressurizing yourself.

Below are simple subject-wise checklist of important topics asked in LPUNEST. Candidates must use this for quick revision:

Also Read: LPU NEST 2026 Syllabus