NEET UG 2026: Top 10 Physics Questions to Boost Preparation

As the countdown to the National Eligibility Entrance Test, Undergraduate (NEET UG) 2026 begins, aspiring medical students are ramping up their preparation efforts. The examination is scheduled for May 3, 2026, and candidates are encouraged to engage with sample papers and past questions to enhance their understanding of the material.

To support these candidates, a collection of ten sample Physics questions has been compiled, modeled closely after the format of the NEET UG 2023 examination. These questions span various topics commonly covered in the syllabus, allowing students to test their knowledge and hone their problem-solving skills.

Sample Physics Questions

1. **Motion and Laws of Motion**
A block of mass 5 kg is placed on a rough horizontal surface with a coefficient of friction μ = 0.4. A horizontal force F is applied. The block just begins to move when F = x N. Find x. (Take g = 10 m/s²)
A. 15
B. 20
C. 25
D. 30
**Answer:** C. F = μmg = 0.4 × 5 × 10 = 20 N

2. **Electrostatics**
Two identical conducting spheres having charges +8 μC and −2 μC are brought into contact and then separated. What is the charge on each sphere after separation?
A. +3 μC
B. +2 μC
C. +4 μC
D. +6 μC
**Answer:** C. Average = (8 − 2)/2 = +3 μC each

3. **Thermodynamics**
An ideal gas expands isothermally and does 500 J of work. The heat absorbed by the gas is:
A. 0
B. −500 J
C. +500 J
D. +1000 J
**Answer:** C. For isothermal process, ΔU = 0, so Q = W = +500 J

4. **Current Electricity**
The resistance of a wire is 10 Ω. It is stretched so that its length becomes double. The new resistance will be:
A. 10 Ω
B. 20 Ω
C. 40 Ω
D. 80 Ω
**Answer:** C. R’ = R(l’/l)² = 10 × 2² = 40 Ω

5. **Ray Optics**
A concave mirror produces an image three times larger than the object. If the object is placed 20 cm from the mirror, find its focal length.
A. 10 cm
B. 15 cm
C. 20 cm
D. 30 cm
**Answer:** B. m = −v/u = 3 ⇒ v = −3u = −60 cm, using mirror formula 1/f = 1/u + 1/v ⇒ 1/f = 1/20 − 1/60 = 1/30 ⇒ f = 30 cm

6. **Work, Power and Energy**
A 2 kg block moves on a frictionless surface with a velocity of 5 m/s. A constant force acts for 4 s, increasing its velocity to 9 m/s. Find the power delivered by the force at the end of 4 s.
A. 32 W
B. 64 W
C. 72 W
D. 81 W
**Answer:** B. a = Δv/Δt = 1 m/s² ⇒ F = ma = 2 N, at v = 9 m/s ⇒ P = Fv = 18 W

7. **Gravitation**
At what height above Earth’s surface will the gravitational acceleration be one-fourth of its value at the surface? (Radius of Earth = R)
A. R
B. √2 R
C. R/2
D. 3R
**Answer:** A. g’ = g(R/(R+h))² = g/4 ⇒ (R/(R+h)) = 1/2 ⇒ h = R

8. **Magnetic Effects of Current**
A straight wire carrying current I is placed along the x-axis. The direction of the magnetic field at a point on the y-axis is:
A. +z direction
B. −z direction
C. +x direction
D. −x direction
**Answer:** A. Right-hand rule ⇒ field along +z for current along +x and point on +y axis

9. **Modern Physics**
If the work function of a metal is 2 eV, find the threshold wavelength for photoelectric emission.
A. 310 nm
B. 413 nm
C. 620 nm
D. 1240 nm
**Answer:** C. λ = 1240/W = 1240/2 = 620 nm

10. **Semiconductor Electronics**
A silicon diode is operated at room temperature with a forward bias of 0.7 V. If the barrier potential decreases by 2 mV/°C, at what temperature will it become 0.6 V?
A. 25°C
B. 50°C
C. 75°C
D. 100°C
**Answer:** C. ΔV = 0.1 V ⇒ 100 mV; 100/2 = 50 °C rise ⇒ 25 + 50 = 75 °C

As preparations intensify for the NEET UG 2026, candidates are advised to familiarize themselves with the examination structure and practice a variety of problems. The National Testing Agency (NTA) has yet to release detailed notifications regarding the examination, but students are encouraged to stay updated as the exam date approaches.