Question

SURATION: 2
Calculate the frequency and energy of a photon of radiation having wavelength 6000Å.
JTION:​

Answer 1

f = 5.0 X 10¹⁴ Hz

E = 3.315 X 10⁻⁴⁷ J

Explanation:

Given

wavelength λ = 6000 Å ⇒ 6000 X 10⁻¹⁰ m

frequency f = ??

energy E = ??

Solution

as we know

f = c /  λ

f = 3 x 10⁸ / 6000 X 10⁻¹⁰

f = 0.5 X 10¹⁵ Hz

f = 5.0 X 10¹⁴ Hz

also E = hf

E = 6.6 X 10⁻³⁴ X 5.0 X 10¹⁴

E = 3.315 X 10⁻⁴⁷ J