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A particle is moving in a circle with uniform speed v. In moving from a point to another diametrically opposite point
Options
(a) The momentum changes by mv
(b) The momentum changes by 2mv
(c) The kinetic energy changes by 1/2 mv²
(d) The kinetic energy changes by mv²
Correct Answer:
The momentum changes by 2mv
Explanation:
The diametrically opposite points, the velocities have same magnitude but opposite directions. Therefore, change in momentum is MV – (- MV) = 2MV.
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- The intensity at the maximum in a Young’s double slit experiment is I₀.
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Topics: Motion in Plane
(93)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bullet comes out of the barrel of gun of length 2m with a speed of 800 m/s
- The intensity at the maximum in a Young’s double slit experiment is I₀.
- When a string is divided into three segments of length l₁, l₂ and l₃ the fundamental
- The total energy of an electron in the first excited state of hydrogen atom
- In the Young’s double slit experiment, a point P on the central bright fringe
Topics: Motion in Plane (93)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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