Question

What is the frequency of a green light which has a wavelength of 4.9 × 10‐⁷?​

Answer 1

Answer:

hii mate

Explanation:

We know that , Frequency= speed of light / wavelength

Given wavelength = 4.9 × 10^-7

So , frequency = 3×10^8/4.9 ×10^-7

= 3× 10^8×10^7 × 10^1/49

= 3×10^16 /49

= 0.06× 10^15

this is ur ans.

thank u