Question

5. The energy of photons in a beam whose wavelength is
6.20 x 10 cm is
(1) I eV (2) 0.01 eV (3) 2.0 eV (4) 0.02 eV​

Answer 1

Answer:

your answer is

Explanation:

2.0 eV

hope it is helpful to you ✌✌✌

Answer 2

Answer:

(3) 2.0 eV

Explanation:

wavelength = 6.2*10∧-5 cm = 6.2*10^-7 m

Energy = hc/λ

=(6.6*10^-34 * 3*10^8)/6.2*10^-7

=3.19*10^-19 V

=(3.19*10^-19)/1.6*10^-19 eV

=1.99 eV ≅ 2.0 eV