What is the effect of increasing the intensity of light on the maximum kinetic e
Practice Questions
Q1
What is the effect of increasing the intensity of light on the maximum kinetic energy of emitted electrons?
It increases
It decreases
It remains the same
It becomes zero
Questions & Step-by-Step Solutions
What is the effect of increasing the intensity of light on the maximum kinetic energy of emitted electrons?
Correct Answer: Maximum kinetic energy remains the same.
Step 1: Understand that light can cause electrons to be emitted from a material when it hits the surface.
Step 2: Know that the energy of the light is related to its frequency (how fast the light waves oscillate).
Step 3: Realize that the maximum kinetic energy of the emitted electrons depends only on the frequency of the light, not how bright (intense) the light is.
Step 4: Learn that increasing the intensity of light means more photons (light particles) are hitting the surface, but each photon still has the same energy if the frequency is unchanged.
Step 5: Conclude that since the maximum kinetic energy depends only on frequency, increasing the intensity does not change the maximum kinetic energy of the emitted electrons.
