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A body of mass M hits normally a rigid wall with velocity V and bounces back with the same velocity. The impulse experienced by the body is
Options
(a) MV
(b) 1.5 MV
(c) 2MV
(d) zero
Correct Answer:
2MV
Explanation:
Impulse experienced by the body
= change in momentum
MV – ( – MV) = 2 MV
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- Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V
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Topics: Laws of Motion
(103)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If the ionisation energy for the hydrogen atom is 13.6 eV, the energy required
- Current in a coil changes from 4 A to zero in 0.1 second and the emf induced is 100V
- The number of beta particles emitted by a radioactive substance is twice the number
- Two bodies of masses m₁ and m₂ are initially at rest at infinite distance apart
- Two balls are dropped from same height at 1 second interval of time.
Topics: Laws of Motion (103)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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