Question

How much energy associated with radiation of wavelength 200nm

Answer 1

Explanation:

Hope it will help u.

here h= plank's constant

Answer 2

Answer:

9.939*10^ -19

Explanation:

200nm=200*10^-9

c=νλ

ν=c/λ=3*10^8ms^-1/200*10^-9

 =1.5*10^15

E=hν

e=6.626*10^-34js*1.5*10^15

 =9,939*10^-19.

This is the correct answer.