Question

If energy of a photon is (see image for question)

[8 pts] If the energy of a photon is 1.32% 10-18 (a) what is the frequency of the photon in Hz? 21. J, (b) what is its wavelength in nm?

Answer 1

Given Energy of photon = 132 times 10^-18J what is the frequency of the photon in H_z formula: E = hr here E = hr Here E = Energy of photon h: plank's constant = 6.626 times 10^-34 J.S gamma = frequency So gamma = E/h put into the values in above formula gamma = 1.32 times 10^-18/6.626 times 10^-34 = 1.992 times 10^15 S^t = 1.992 times 10^-15 H_2 frequency units is H_2 q s^-1 \r\n (b) what is its wavelength in nm Formula C = gamma lambda C: velocity of light 3.00 X 10^8 m/s gamma = frequency of photon lambda: wave length So X = C/r gamma = 1.992 times 10^15 HZ or s^-1 therefore X = 3.00 times 10^8 m/s/1.992 times 10^15 = 1.506 times 10^-7 m \r\n meter convert to ratio metal so 1m = 10^9 nm1.506 times 10^-7 m times 10^9 nm/1 m