MHT CET 2022 Physics question
When the bob of mass 'm' moves in a horizontal circle of radius 'r' with uniform speed 'V' having length of string 'L' describes a cone of semi vertical angle . The centripetal force acting on the bob is given by [g = acceleration due to gravity]
Answer: (C)
Solution
For a conical pendulum the tension resolves as (vertical) and (horizontal, providing the centripetal force). Dividing, . From the geometry, and the vertical
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