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y=3cos 100pi(2t-x), the value of lamda i...

`y=3cos 100pi(2t-x)`, the value of `lamda` is

A

4 cm

B

6 cm

C

2 cm

D

1 cm

Text Solution

Verified by Experts

The correct Answer is:
C
`y = 3 cos 100 pi (2t - x)`
`k = 100 pi`
`(2pi)/(lamda) = 100pi`
`lamda = (2)/(100) = 0.02 m = 2 cm`
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