NEET 2017 physics questions with solutions

Showing 1–10 of 11 questions

• MCQeasyRotational Motionquestion based on pure rotation about fixed axis

  A rope is wound around a hollow cylinder of mass 3 kg and radius 40 cm. Find the angular acceleration when the rope is pulled with force 30 N.

  Options

  • Option A

    25 m/s²

  • Option B

    0.25 rad/s²

  • Option C

    25 rad/s²

  • Option D

    5 m/s²

  Check answerShow answer

  NEET 2017

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

  The x and y coordinates of a particle at any time are x = 5t - 2t² and y = 10t, where x and y are in metres and t in seconds. The acceleration of the particle at t=2 s is:

  Options

  • Option A

    0

  • Option B

    5 m s⁻²

  • Option C

    -4 m s⁻²

  • Option D

    -2 m s⁻²

  Check answerShow answer

  NEET 2017

  Open question & full solution →
• MCQmediumUnit dimension and errorDimensional Analysis

  A physical quantity having dimensions of length is to be formed from c, G and e²/(4πε₀), where c is speed of light, G is gravitational constant and e is charge. Which expression has dimensions of length?

  Options

  • Option A

    (1/c²)[G e²/(4πε₀)]¹ᐟ²

  • Option B

    c²[G e²/(4πε₀)]¹ᐟ²

  • Option C

    (1/c²)[e²/(4πε₀G)]¹ᐟ²

  • Option D

    (1/c)[G e²/(4πε₀)]

  Check answerShow answer

  NEET 2017

  Open question & full solution →
• MCQmediumCircular Motioncentripital force and centrifugal force

  A particle attached to a light string of length ℓ moves at constant speed v in a circle on a smooth horizontal table, with the string tied to a peg at the centre. The inward resultant force is (T denotes string tension):

  Options

  • Option A

    T

  • Option B

    T+mv²/ℓ

  • Option C

    T-mv²/ℓ

  • Option D

    zero

  Check answerShow answer

  NEET 2017

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

  Acceleration due to gravity at a height of 1 km above Earth equals that at depth d below the surface. For small height/depth compared with Earth radius, d is:

  Options

  • Option A

    0.5 km

  • Option B

    1 km

  • Option C

    1.5 km

  • Option D

    2 km

  Check answerShow answer

  NEET 2017

  Open question & full solution →
• MCQmediumWork , Power and Energykinetic energy and work energy theorem

  A raindrop of mass 1 g falls from height 1 km and hits the ground at 50 m/s. Take g=10 m s⁻². Work done by gravity and air resistance respectively is:

  Options

  • Option A

    -10 J, -8.25 J

  • Option B

    1.25 J, -8.25 J

  • Option C

    100 J, 8.75 J

  • Option D

    10 J, -8.75 J

  Check answerShow answer

  NEET 2017

  Open question & full solution →
• MCQeasyGravitationGravitation, Gravitational Field & Potential Energy

  Two astronauts float freely in space after losing contact with their spacecraft. What will happen to them due to their mutual gravitational attraction?

  Options

  • Option A

    Remain at the same distance from each other.

  • Option B

    Move towards each other.

  • Option C

    Move away from each other.

  • Option D

    Become stationary.

  Check answerShow answer

  NEET 2017

  Open question & full solution →
• MCQmediumRotational Motionangular impulse in pure rotation and rotational collision

  Two discs with the same moment of inertia I initially rotate at angular speeds ω₁ and ω₂ about their common axes. They are brought face-to-face and acquire the same final angular speed. Find rotational energy lost.

  Options

  • Option A

    ½I(ω₁+ω₂)²

  • Option B

    ¼I(ω₁-ω₂)²

  • Option C

    I(ω₁-ω₂)²

  • Option D

    (I/8)(ω₁-ω₂)²

  Check answerShow answer

  NEET 2017

  Open question & full solution →
• MCQmediumNewtons law of motion and Frictionspring related problem

  Blocks A and B have masses 3m and m, joined by a massless string; the system hangs from a vertical spring as shown. Immediately after the string between them is cut, find magnitudes of accelerations of A and B.

  

  Options

  • Option A

    g, g/3

  • Option B

    g/3, g

  • Option C

    g, g

  • Option D

    g/3, g/3

  Check answerShow answer

  NEET 2017

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

  Which statements are correct? (I) Centre of mass always coincides with centre of gravity. (II) The centre of mass is the point where total gravitational torque on a body is zero. (III) A couple causes both translation and rotation. (IV) Mechanical advantage >1 lets a small effort lift a large load.

  Options

  • Option A

    (II) and (IV)

  • Option B

    (I) and (II)

  • Option C

    (II) and (III)

  • Option D

    (III) and (IV)

  Check answerShow answer

  NEET 2017

  Open question & full solution →