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Q.

In the relation y=rsinωtkx the dimensions of ωk are :

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a

M0L0T0

b

M0L1T1

c

M0L0T1

d

M0L1T0

answer is B.

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Detailed Solution

y=rsin(ωtkx)

Here ωt= angle  ω=1T=T1

Similarly kx = angle  k=1L=L1

ωk=T1L1=LT1

or Simply ωk represent wave velocity as 

ωk=2πv2π/λ=

Hence correct choice is (2).

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