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In the relation y=acos(omegat-kx), the d...

In the relation `y=acos(omegat-kx)`, the dimensional formula for `k` is

A

`[M^(0)L^(-1)T^( -1)]`

B

`[M^(0)LT^( -1)]`

C

`[M^(0)L^(-1)T^(0)]`

D

`[M^(0)LT]`

Text Solution

Verified by Experts

The correct Answer is:
C
`y = a cos (omegat - kx)`
[ k x] = `[omegat] = ` [dimensionless] `=[M^(0)L^(0) T^(0)]`
`[k] = [1/x]=[L^(-1)]`
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