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10. In a certain process 1.5×105 Joules of heat is added to an ideal gas to keep the pressure at 2.0×105 Pa while the volume expands from 6.3m3 to 7.1m3. […]

9. Standing waves are excited in a 1 m long pipe open at one end, closed at the other. Take the speed of the wave as 340 m/s and calculate […]

8. Two identical bi-convex lenses L1 and L2 are arranged 10 cm apart. A collimated, parallel beam of light strikes L1 from the left and converges 4.3 cm from the […]

7. The voltage measured across a metal bar is plotted as a function of applied current, at two different temperatures (T1 and T2). Which of the following statements is correct? […]

6. You have a system of non-interacting particles that can exist in three possible states, with energy 0, E, 2E (E > 0). At a temperature T = E/kB (where […]

5. A ray of light is incident on a mirror and the light travels in the direction 𝑥 + 3 𝑦 and after reflection, travels in the direction 𝑥. What […]

4. A charged particle is released from rest in a region where there is a constant electric field and a constant magnetic field. If the two fields are parallel to […]

3. A particle is constrained to move in a circle with a 10-metre radius. At one instant, the particle speed is 10 m/s and its speed is increasing with a […]

2. Which of the following best explains why the refractive index of water changes with temperature? a. Due to change in density b. Due to change in surface tension c. […]

1. You are running up a spiral staircase. The associated angular momentum points in which direction? a. Upwards b. Downwards c. The net displacement is linear, so there is no […]