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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 10cm from an node is

A

5mm

B

7.07mm

C

2.5mm

D

1mm

Text Solution

Verified by Experts

The correct Answer is:
C
`R=2Asin (2pix)/(lamda)`
`=5xx10^(-3)xxsin(2pixx10^(-1))/(1.2)`
`=5xx10^(-3)sin pi/6=5xx10^(-3)xx1/2`
=2.5mm
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