450 waves of a energy radiation passes i...

450 waves of a energy radiation passes in one minute from a point then what will be the wavelength of radiation :-

A

`6.66xx10^(-5)` m

B

`4xx10^(7)` m

C

`2.25xx10^9` m

D

`2.5xx10^(-8)` m

Verified by Experts

The correct Answer is:

B

`lambda=C/v`
`=(3xx10^8)/(450/60)=(3xx10^8xx6)/45`
`=4xx10^7` m

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