NEET 2021 physics questions with solutions

Showing 1–10 of 20 questions

• MCQmediumNewtons law of motion and Frictionnewton second law and problem based on it

  A ball of mass 0.15 kg is dropped from height 10 m, strikes the ground and rebounds to the same height. Find the magnitude of impulse delivered to it. Take g = 10 m s⁻².

  Options

  • Option A

    0 kg m s⁻¹

  • Option B

    4.2 kg m s⁻¹

  • Option C

    2.1 kg m s⁻¹

  • Option D

    1.4 kg m s⁻¹

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQmediumGravitationSatellites, Orbital Motion & Kepler’s Laws

  What extra energy must be supplied to transfer a satellite of mass m from a circular orbit of radius R₁ to another circular orbit of radius R₂>R₁ around a planet of mass M?

  Options

  • Option A

    GMm(1/R₂²-1/R₁²)

  • Option B

    GMm(1/R₁-1/R₂)

  • Option C

    2GMm(1/R₁-1/R₂)

  • Option D

    (GMm/2)(1/R₁-1/R₂)

  Check answerShow answer

  NEET 2021AIPMT Mains 2010NEET

  Open question & full solution →
• MCQmediumRotational Motiontorque and rotational equilibrium

  A uniform 200 cm, 500 g rod is balanced on a wedge at its 40 cm mark. Mass 2 kg hangs at 20 cm and mass m hangs at 160 cm as shown. Find m (g=10 m/s²).

  

  Options

  • Option A

    1/2 kg

  • Option B

    1/3 kg

  • Option C

    1/6 kg

  • Option D

    1/12 kg

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQmediumUnit dimension and errorDimension and its application

  If E and G respectively denote energy and gravitational constant, then E/G has dimensions:

  Options

  • Option A

    [M² L⁻¹ T⁰]

  • Option B

    [M L⁻¹ T⁻¹]

  • Option C

    [M L⁰ T⁰]

  • Option D

    [M² L⁻² T⁻¹]

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQmediumGravitationAcceleration Due to Gravity & Escape Velocity

  Which of the four graphs correctly shows the dependence of gravitational acceleration g on distance r from the centre of a uniformly dense Earth of radius R?

  Options

  • Option A

    
  • Option B

    
  • Option C

    
  • Option D

    

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQmediumKinematics part-2 Projectile MotionProjectile from height

  A car starts from rest and accelerates at 5 m s⁻². At t = 4 s, a ball is dropped out of a window by a person sitting in the car. What are the velocity magnitude and acceleration magnitude of the ball at t = 6 s? Take g = 10 m s⁻².

  Options

  • Option A

    20 m s⁻¹, 5 m s⁻²

  • Option B

    20 m s⁻¹, 0

  • Option C

    20√2 m s⁻¹, 0

  • Option D

    20√2 m s⁻¹, 10 m s⁻²

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQmediumWork , Power and Energyconservation of mechanical energy

  A particle is released from height S above Earth's surface. At some height h its kinetic energy equals three times its gravitational potential energy (zero at ground). Find h and speed v.

  Options

  • Option A

    S/4 and (3gS)/2

  • Option B

    S/4 and √(3gS/2)

  • Option C

    S/2 and √(3gS/2)

  • Option D

    S/4 and √(gS/2)

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQmediumKinematics part-2 Projectile MotionMotion in 2-D and ground to ground projectile

  A particle moving in a circle of radius R with uniform speed takes time T to complete one revolution. If the particle is projected with the same speed at an angle θ to the horizontal, the maximum height attained equals 4R. The angle of projection θ is given by:

  Options

  • Option A

    θ = cos⁻¹√(gT²/(π²R))

  • Option B

    θ = cos⁻¹√(π²R/(gT²))

  • Option C

    θ = sin⁻¹√(π²R/(gT²))

  • Option D

    θ = sin⁻¹√(2gT²/(π²R))

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQmediumGravitationAcceleration Due to Gravity & Escape Velocity

  A particle is projected from Earth’s surface with speed v=kvₑ (k<1), where vₑ is escape speed. What maximum height above the surface does it reach?

  Options

  • Option A

    R[k/(1-k)]²

  • Option B

    R[k/(1+k)]²

  • Option C

    R²k/(1+k)

  • Option D

    Rk²/(1-k²)

  Check answerShow answer

  NEET 2021

  Open question & full solution →
• MCQeasyKinematics part-2 Projectile MotionMotion in 2-D and ground to ground projectile

  The speed of a projectile at its maximum height is half of its initial speed. The angle of projection is:

  Options

  • Option A

    60°

  • Option B

    15°

  • Option C

    30°

  • Option D

    45°

  Check answerShow answer

  NEET 2021

  Open question & full solution →