The energy associated with the photon of a radio transmission at 3 x 105 Hz is
[h = 6.63 x 10-34Js]
-
2.00 x 10-28J
- 1.30 x 10-28J
- 2.00 x 10- 29J
- 1.30 x 10-29J
The correct answer is: A
Explanation
A photon of energy E = hf= 6.63 x 10-34 x 3 x 105
= 19.89 x 10-29
= 2.0 x 10-28J