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A particle of mass 'm' is moving in hori...

A particle of mass 'm' is moving in horizontal circle inside a smooth inverted fixed vertical cone above height 'h' from apex. Angle of cone is `theta`, then

A

Normal force on particle by surface of cone is `mg cos theta`

B

Normal force on particle by surface of cone is `mg cosec theta`

C

Time period of revolution of particle increases, if `theta` increase keeping `h` constant

D

Time period of revlution increases, if `h` increases keeping `theta` fixed.

Text Solution

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The correct Answer is:
B, C, D
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