1.

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

Answer»

`6.66xx10^(-5)` m
`4XX10^(7)` m
`2.25xx10^9` m
`2.5xx10^(-8)` m

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


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