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Q.

The equation of motion of a particle in S.H.M is \large a + 16{\pi ^2}x\, = \,0. In the equation ‘a’ is the linear acceleration (in m/sec2) of the particle at a displacement ‘x’ in meter. The time period  of S H M in seconds is

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a

 

14

b

12

c

1

d

2

answer is B.

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Detailed Solution

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\large a + 16{\pi ^2}x\, = \,0

But S.H.M equation is  \large a\, = \, - {\omega ^2}x\, \Rightarrow \,{\omega ^2}\, = \,16{\pi ^2}

\large \Rightarrow \,w\, = \,4\pi \, \Rightarrow \,\frac{{2\pi }}{T}\, = \,4\pi \, \Rightarrow \,T\, = \,\frac{2}{4}\, = \,\frac{1}{2}\sec

 

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