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JKBOPEE  NEET UG Physics Mock Test 2026: 20 High-Yield MCQs

Practice Test for NEET UG Aspirants: Master these 20 important Physics questions curated for the 2026 exam cycle.

Marking Scheme:
✅ +4 for Correct Answer | ❌ -1 for Incorrect Answer

1. The dimensions of universal gravitational constant (G) are:

A) [ML²T⁻¹] | B) [M⁻¹L³T⁻²] | C) [M⁻²L³T⁻²] | D) [M⁻¹L²T⁻¹]

2. A ball is thrown vertically upward with 20 m/s from a 25 m tall tower. How high will it rise from the ground? (g = 10 m/s²):

A) 20 m | B) 40 m | C) 45 m | D) 50 m

3. If momentum is increased by 50%, the percentage increase in kinetic energy is:

A) 50% | B) 100% | C) 125% | D) 150%

4. A mass 'm' hits a wall with velocity 'v' and bounces back with same velocity. Change in momentum is:

A) Zero | B) mv | C) 2mv | D) -2mv

5. Work done by a centripetal force on a body moving in a circle is:

A) Positive | B) Negative | C) Zero | D) Variable

6. Efficiency of a Carnot engine working between 327°C and 27°C is:

A) 50% | B) 25% | C) 75% | D) 90%

7. In an adiabatic process, which relation is correct?

A) T₁V₁^(γ-1) = T₂V₂^(γ-1) | B) PV = constant | C) T/V = constant

8. Velocity of sound in air is NOT affected by change in:

A) Temperature | B) Humidity | C) Pressure | D) Density

9. Two charges +3μC and +4μC repel with 10 N. If -6μC is added to both, new force is:

A) 10 N (Attractive) | B) 10 N (Repulsive) | C) 5 N | D) 20 N

10. A wire of resistance R is stretched to double its length. New resistance is:

A) 2R | B) 4R | C) R/2 | D) R/4

11. Kirchhoff’s Junction Law is based on conservation of:

A) Energy | B) Momentum | C) Charge | D) Mass

12. Magnetic field at 20 cm from a long wire carrying 35 A is:

A) 3.5 × 10⁻⁵ T | B) 7 × 10⁻⁵ T | C) 3.5 × 10⁻⁴ T

13. Angle of minimum deviation for prism (μ=1.5, A=60°) is:

A) 30° | B) 37° | C) 45° | D) 60°

14. Object at 20 cm from convex mirror (f=20 cm). Image position is:

A) 10 cm behind | B) 20 cm front | C) Infinity

15. De-Broglie wavelength of electron at 100 V is:

A) 1.227 Å | B) 12.27 Å | C) 0.1227 Å

16. If incident light frequency is doubled, Max K.E. of photoelectrons will:

A) Double | B) Halve | C) More than double | D) Same

17. Half-life is 10 days. Time for 75% decay is:

A) 15 days | B) 20 days | C) 25 days | D) 30 days

18. In p-type semiconductor, majority charge carriers are:

A) Electrons | B) Holes | C) Neutrons | D) Protons

19. Which logic gate gives output 0 only when both inputs are 1?

A) AND | B) OR | C) NAND | D) NOR

20. Energy equivalent of 0.5 g of substance is (E=mc²):

A) 4.5 × 10¹³ J | B) 1.5 × 10¹³ J | C) 0.5 × 10¹³ J

Answer Key

Q. No	Ans	Q. No	Ans
1	B	11	C
2	C	12	A
3	C	13	B
4	C	14	A
5	C	15	A
6	A	16	C
7	A	17	B
8	C	18	B
9	A	19	C
10	B	20	A

Keep practicing and stay tuned to Sajad Speaks!