Dual Nature of Light

Question 1

Which ancient idea of the nature of light did Isaac Newton build upon?

Revolt · Accepted Answer

Light is a substance through which particles flow from a light source.

Question 2

Reflection:

Revolt · Accepted Answer

both particle and wave theories

Question 3

Refraction:

Revolt · Accepted Answer

both particle and wave theories

Question 4

Diffraction:

Revolt · Accepted Answer

wave theory

Question 5

Interference:

Revolt · Accepted Answer

wave theory

Question 6

Which result would support the particle theory of light?

Revolt · Accepted Answer

Frequencies of light that fall below the frequency threshold of the metal do not eject electrons.

Question 7

Which concept explains why frequencies of light that fell below the frequency threshold of the metal did not eject electrons?

Revolt · Accepted Answer

Photons of different kinds of light carry different amounts of energy.

Question 8

Which statement best describes how today’s scientific community views light?

Revolt · Accepted Answer

Light behaves like both waves and particles.

Question 9

What is the energy of a photon of ultraviolet radiation with a frequency of 4.4 × 1015 Hz? Planck’s constant is6.63 × 10–34 J • s.

Revolt · Accepted Answer

2.9 × 10–18 J

Dual Nature of Light Answers