The photoelectric effect happens when light waves are absorbed by a surface and electrons are emitted. Scientists once thought that the energy of those electrons was proportional to the intensity of the light. However, experiments showed that the maximum energy of the electrons did not depend on the intensity of the light. Instead, the energy increased as the frequency of the light increased. Below a certain frequency, the effect did not occur.

Question

What can be inferred from the paragraph?

A: Electrons are released when light hits a surface.

B: The absorption of light causes electrons to gain energy.

C: Energy increases as frequency of light increases.

D: The maximum energy of electrons does not depend on light intensity.

Answer 1

The correct inferences from the paragraph are:

A: Electrons are released when light hits a surface.
C: Energy increases as frequency of light increases.
D: The maximum energy of electrons does not depend on light intensity.

Answer 2

What would be the best answer?

Answer 3

The best answer would be:

D: The maximum energy of electrons does not depend on light intensity.

Answer 4

Thanks!

Answer 5

You're welcome! If you have any more questions, feel free to ask.