Question Detail

PHY 104 Photo Electric Emission Objective Question

Question

According to the wave theory, what is predicted about the photoelectric current when the frequency of light is varied?
Options
A Current increases with frequency above a threshold.
B Current is independent of frequency, as long as light is present.
Correct Answer
C Current only flows if frequency is below a certain value.
D Current decreases as frequency increases.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The graph on page 2, 'Icurrent vs frequency of light' under wave theory predictions, shows that current is expected to be present regardless of frequency, suggesting independence of frequency.

Hint

Look at the top-right graph on page 2 that plots 'Icurrent' against 'frequency of light' for the wave theory.

Question Info