When light of a certain frequency is incident on a metal surface, no photoelectrons are emitted. If

JAMB Physics 2023 43 views
Source: JAMB · 2023

When light of a certain frequency is incident on a metal surface, no photoelectrons are emitted. If the frequency of the light is increased, what happens to the stopping potential?

  1. The stopping potential increases. ✓
  2. The stopping potential decreases.
  3. The stopping potential does not change.
  4. The stopping potential can either increase or decrease, depending on the intensity of the light.
Explanation

This physics concept involves analyzing the given values and applying relevant formulas. Work through the problem step by step using known equations and constants.

Identify what quantity needs to be found and which formula connects the given information to the answer. Substitute the values carefully, paying attention to units.

Check that your calculated answer matches one of the options provided. Understanding the underlying principle helps verify the solution makes physical sense.

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