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A particle of mass m is moving in a pote...

A particle of mass m is moving in a potential well, for which the potential energy is given by `U(x) = U_(0)(1-cosax)` where `U_(0)` and a are positive constants. Then (for the small value of x)

A

the time period of small osciallation is `T=2pisqrt(m/(aU_(0))`

B

the speed of the particle is maximum at x=0

C

the amplitude of oscillations is `pi/8`

D

the time period of small osciallations is `T=2pisqrt(m/(a^(2)U_(0))`

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B, C, D
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