Joint Entrance Examination/2000 Screening/Q015 Pendulum sliding on a plane

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Original Question by Dharav talk Here's the question... The period of oscillation of a simple pendulum of length L suspended from the roof of the vehicle which moves without friction, down an inclined plane of inclination α?, is given by... $2\pi {\sqrt {\frac {L}{g\cos \alpha }}}$ $2\pi {\sqrt {\frac {L}{g\sin \alpha }}}$ $2\pi {\sqrt {\frac {L}{g}}}$ $2\pi {\sqrt {\frac {L}{g\tan \alpha }}}$ Posted by Dharav talk 04:41, 18 August 2009 (UTC)

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