In the relation y=rsin(ωt−kx), the dimensions of ω/k are
[M0L1T0]
[M0L0T1]
[M0L0T0]
[M0L1T−1]
A
[M0L0T0]
B
[M0L0T1]
C
[M0L1T−1]
D
[M0L1T0]
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Solution
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y=rsin(wt−kx)
(wt−kr) is angle so it is dimensionless.
[wt]=[M0L0T0][kx]=[M0L0T0]
w=1t
[w]=[T−1]k=1x
wk=[T−1][L−1]=[M0LT−1]k=[L−1]
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