Answer:
Explanation:
wavelength, λ = 6.5 x 10^-7 m
velocity of light, c = 3 x 10^8 m/s
Let the frequency is f
Use the formula
c = f x λ
3 x 10^8 = f x 6.5 x 10^-7
f = 4.6 x 10^14 Hz
Energy of each photon, E = h x f
where, h is the Plank's constant
E = 6.63 x 10^-34 x 4.6 x 10^14
E = 3.06 x 10^-19 J
