NEET Physics - MCQ Practice Questions

A block slides down an inclined plane of angle 30° without friction. What is the acceleration down the plane?

A 4 kg mass is suspended by a rope. If the rope can withstand a tension of 60 N, what is the maximum upward acceleration possible? (g = 10 m/s²)

Two blocks A (3 kg) and B (2 kg) are placed on a frictionless horizontal surface. If a horizontal force of 10 N is applied to block A pushing both blocks, what is the acceleration of the system?

A particle moves in a straight line with constant acceleration. If it travels 15 m in the first 3 seconds and 25 m in the next 2 seconds, what is its acceleration?

A car of mass 1000 kg moving at 20 m/s needs to stop in 4 seconds on a horizontal road. What must be the coefficient of friction between the tires and road? (g = 10 m/s²)

A 12 kg object accelerates from rest to 30 m/s in 5 seconds on a rough horizontal surface. If the friction force is 24 N, what is the applied force?

A block of mass m slides down a smooth inclined plane of angle θ. If the height of the plane is h and its length is L, what is the acceleration along the incline?

A rocket of mass 500 kg ejects gases at a relative velocity of 2000 m/s with respect to the rocket. If the rate of ejection is 2 kg/s, what is the thrust force experienced by the rocket?

Two identical spheres of mass m are moving towards each other with velocities 3v and v respectively on a frictionless surface. After perfectly inelastic collision, what is the magnitude of velocity of the combined mass?

A Carnot engine operates between temperatures 400 K and 300 K. Its maximum efficiency is:

During an adiabatic expansion of an ideal gas, the internal energy:

The work done by a gas in a cyclic process is:

A heat engine takes 1000 J from hot reservoir and releases 600 J to cold reservoir. Its efficiency is:

The coefficient of performance (COP) of a refrigerator is 5. The work input required to remove 500 J of heat is:

At absolute zero, the entropy of a perfect crystal is:

A reversible engine and an irreversible engine operate between the same two temperatures. Which has greater efficiency?

The heat capacity at constant pressure (Cp) for an ideal gas is greater than at constant volume (Cv) because:

For one mole of ideal gas, Cp - Cv equals:

The entropy change of the universe in an irreversible process is:

Three moles of an ideal monatomic gas are heated at constant volume from 300 K to 600 K. The change in internal energy is approximately: