JAMB - Physics (2006 - No. 25)
The energy associated with the emitted photon when a mercury atom changes from one state to another is 3.3 ev. calculate the frequency of the photon.
[e = 1.6 x 10-19c; h = 6.6 x 10-34js]
[e = 1.6 x 10-19c; h = 6.6 x 10-34js]
1.3 x 10-15 Hz
3.1 x 1052 Hz
3.2 x 10-53 Hz
8.0 x 1014 Hz
解释
E = hf
f = (E)/h
∴ f = (3.3 x 1.6 x 10-19)/6.6 x 10-34
= 0.8 x 1015 = 8.0 x 1014 Hz
f = (E)/h
∴ f = (3.3 x 1.6 x 10-19)/6.6 x 10-34
= 0.8 x 1015 = 8.0 x 1014 Hz