AnswersOC27 EarthSpace Sci-2001310-S2-NelsonElectromagnetic Waves

Dual Nature of Light Answers

10 verified answers2 views
1
Free Preview

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

A
Light is a wave or disturbance that travels through spaces in the air.
B
Light is a stream of rays that comes with great velocity from the eyes of an observer.
C
Light is a substance through which particles flow from a light source.
2
Free Preview

Identify the theory that can be used to explain each phenomenon.

Answers:
Diffraction::wave theory
Interference::wave theory
Reflection::both particle and wave theories
Refraction::both particle and wave theories
3

Identify the theory that can be used to explain each phenomenon.

Answers:
Diffraction::wave theory
Interference::wave theory
Reflection::both particle and wave theories
Refraction::both particle and wave theories
4

particle theory✔ wave theoryboth particle and wave theories

A
particle theory
B
✔ wave theory
C
both particle and wave theories
5

particle theorywave theory✔ both particle and wave theories

A
particle theory
B
wave theory
C
✔ both particle and wave theories
6

particle theorywave theory✔ both particle and wave theories

A
particle theory
B
wave theory
C
✔ both particle and wave theories
7

Which result would support the particle theory of light?

A
Increasing the intensity of the light causes electrons to be ejected.
B
Frequencies of light that fall below the frequency threshold of the metal do not eject electrons.
C
There is a time gap between when light strikes the metal and when electrons are ejected.
8

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

A
Photons of different kinds of light carry different amounts of energy.
B
Photons are absorbed by atoms as soon as light strikes the metal.
C
Photons of light that has a frequency below the frequency threshold will not eject electrons.
9

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

A
Light behaves only like waves.
B
Light behaves only like particles.
C
Light behaves like both waves and particles.
10

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.

A
2.9 × 10–18 J
B
2.9 × 10–34 J
C
2.9 × 10–48 J

Did you find these answers helpful?

More from this Course

Assignment
16 verified answers

Assignment

Instruction
9 verified answers

Instruction

Instruction
8 verified answers

Instruction