The value of planok,s constant is `6.63xx10^(-34)Js` the speed of light is` 3xx10^(17) nm s^(-1)` which value is closest to the wavelength in nanometer of a quantum of light with frequency of `6xx10^(15) S^(-1)`?

Options

A. 10
B. 25
C. 50
D. 75

Answer

C

Explanation

`v = (c)/(lamda) or lamda = (c)/(v) = (3 xx 10^(17) nm s^(-1))/(6 xx 10^(15) x^(-1)) = 50 nm`