The wave function (in S.I. unit) for a l...

The wave function (in S.I. unit) for a light wave is `Psi (x, t) = 10^3 sin pi(3xx 10^6 x+9 xx10^14 t)`. The frequency of the wave is—

`4.5xx10^14 Hz`

`3.5xx10^14Hz`

`3.0xx10^10Hz`

`2.5xx10^10Hz`

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