Photon Stream with Doubled Frequency · CAP 2016 #Q12
Physics · modern-physics
Problem
A red beam of light is made up of a stream of photons. If we double the frequency of the beam, keeping the intensity constant, what will happen to the stream?
a) The number of photons will stay the same and the energy of each photon will stay the same.
b) The number of photons will stay the same and the energy of each photon will increase.
c) The number of photons will decrease and the energy of each photon will increase.
d) The number of photons will increase and the energy of each photon will stay the same.
e) The number of photons will increase and the energy of each photon will increase.