The displacement of a particle executing SHM at any instant t is x=7cos0.5πt. The time taken by the particle in reaching from mean position to extreme position will be
4s
2s
1s
1/2s
A
4s
B
2s
C
1s
D
1/2s
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Solution
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It takes T4 seconds to go from mean to extreme position (2πinT,meansπ2inT4) Here, ω=0.5π, thus T=2πω=4 Thus,T4=1s
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