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The wavelength of particular radiation i...

The wavelength of particular radiation is `700 " nm" (1" nm"-10^(-9)"m")`.Find its frequency (v).

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`lambda=700 nm =700 xx10^(-9)m=7xx10^(-7)m`. Also , `c="velocity of light" =3xx10^8m//s`.
So, `v=(c)/(lambda) =(3xx10^8)/(7xx10^-7)=0.42xx10^15//s`
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