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Which of the following does not have the...

Which of the following does not have the dimensions of velocity ? ( Given `epsilon_(0)` is the permittivity of free space , `mu_(0)` is the permittivity of free space , `v is frequency , lambda` is wavelength , `P` is the pressure , and `rho` is density , `k` is wave number , `omega` is the the angular frequency)

A

`1//sqrt( mu_(0)epsilon_(0))`

B

n 1

C

`sqrt(P//rho `

D

`omega k`

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