Question

The energy of a photon is 3 x 10-12 ergs. What is its wavelength in nm?
(h = 6.62 x 10-27 erg, sec; C = 3 x 101° Cm.)
B) 1324
C) 66.2
D) 6.62
A) 662
answer with explanation ​

Answer 1

Answer:

A) 662

Explanation:

wavelength(nm)=3×10-19J3×108m/s×6.

626×10-34Js=662nm.