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The value of amplitude at an antinode ,...

The value of amplitude at an antinode , on an undamped one dimensional stationary wave of wavelength 1.2 m, is 5mm. Then the value of amplitude of particle at a distance of 15cm from an antinode is

A

3.535 mm

B

0.707 mm

C

5 mm

D

7.07 mm

Text Solution

Verified by Experts

The correct Answer is:
A

`R=2Acos (2pix)/(lamda)`
`=5xx10^(-3) cos(2pixx0.5)/(1.2)`
`=5xx10^(-3)cospi/4=3.535`mm
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