Question

Calculate the frequency radiation with wavelength 480nm

Answer 1

Explanation:

1m=10^9m

480nm=480*10^-9m

V=f*lamda

(lamda=€)

f=V/€

•speed of light v=3*10^8m/s

f=3*10^8

.................

480*10^-9

=> 3*10^17

..............

480

=> 0.00625*10^17 ans