Dual Nature of Light — Quiz

Question 1

What is the formula for calculating the energy of a photon?

Revolt · Accepted Answer

cap e is equal to h f

Question 2

Which phenomena support only the wave theory of light? Choose two correct answers.

Revolt · Accepted Answer

interference; diffraction

Question 3

Which observation supports the idea that light is made of particles?

Revolt · Accepted Answer

Light moves in a straight path.

Question 4

What is the smallest packet of electromagnetic energy that can be absorbed or emitted?

Revolt · Accepted Answer

a photon

Question 5

As part of the photoelectric effect, which of these is responsible for the pixels in an image on a digital camera?

Revolt · Accepted Answer

accumulated electrons that are ejected by the image sensor

Question 6

Which theory was contradicted by experiments with the photoelectric effect?

Revolt · Accepted Answer

Visible light, regardless of color, will cause the ejection of electrons when striking metal.

Question 7

Which best explains how the diffraction pattern observed in Young’s experiment supports the wave theory of light?

Revolt · Accepted Answer

The pattern was caused by the interference of waves.

Question 8

How does refraction support the particle theory of light?

Revolt · Accepted Answer

Forces act on the particles to push or pull them from one medium to another.

Dual Nature of Light — Quiz Answers