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NEET Physics - MCQ Practice Questions

Practice <strong>NEET UG Physics</strong> MCQ questions covering Mechanics, Thermodynamics, Waves & Optics, Modern Physics, Electricity & Magnetism, and Electromagnetic Induction. Aligned with NCERT Class 11 & 12 Physics syllabus.

189 questions | 100% Free

Q.81Medium

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?

Q.82Medium

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?

Q.83Easy

An object of mass 8 kg is on a horizontal surface with coefficient of kinetic friction 0.25. What is the friction force when the object is moving? (g = 10 m/s²)

Q.84Medium

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)

Q.85Hard

A body moving with uniform acceleration covers 24 m in the 3rd second and 36 m in the 5th second. What is the initial velocity?

Q.86Hard

A horizontal force F is applied to a 6 kg block on a frictionless incline of 37°. If the block moves up the incline with constant velocity, what is the magnitude of F?

Q.87Easy

Which statement best describes Newton's third law of motion?

Q.88Medium

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?

Q.89Medium

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?

Q.90Medium

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?

Q.91Medium

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?

Q.92Easy

A system absorbs 500 J of heat and does 200 J of work on surroundings. What is the change in internal energy?

Q.93Easy

The entropy of an isolated system can never:

Q.94Easy

In an isothermal process for an ideal gas, which quantity remains constant?

Q.95Medium

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

Q.96Medium

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

Q.97Medium

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

Q.98Medium

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

Q.99Easy

For an ideal gas undergoing isobaric process, the relation between volume and temperature is:

Q.100Medium

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