NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Application +4 | -1

The minimum speed for a particle at the lowest point of a vertical circle of radius r, to describe the circle is

v

. If the radius of the circle is reduced to one-fourth its value, the corresponding minimum speed will be

View answer and explanation

Correct option: B

v/2

Option B (

v/2

) is correct because the minimum speed is proportional to the square root of the radius, so reducing the radius to one-fourth reduces the speed by a factor of two.

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