The displacement of an oscillating particle varies with time 't' (in seconds) according as x = 2 cos(0.5π t ) metre. Then amplitude and time period are :
1 m, 4 s
2 m, 4 s
2 m, 2 s
1 m, 2 s
A
1 m, 4 s
B
1 m, 2 s
C
2 m, 4 s
D
2 m, 2 s
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Solution
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x=A cos ωt Amplitude =2m w=0.5π ; T=2π0.5π=4sec
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