Which phenomenon is best explained by the particle model of light?
(1 point)
Responses
interference
interference
the photoelectric effect
the photoelectric effect
the brightness of a light source
the brightness of a light source
refraction
the photoelectric effect
A light source is allowed to pass through two slits. The light passing through the slits creates a pattern of light and dark on a screen. What is this effect, and how do scientists explain it?
(1 point)
Responses
This is refraction, and it is explained best with the wave model of light.
This is refraction, and it is explained best with the wave model of light.
This is interference, and it is explained best with the wave model of light.
This is interference, and it is explained best with the wave model of light.
This is refraction, and it is explained best with the particle model of light.
This is refraction, and it is explained best with the particle model of light.
This is interference, and it is explained best with the particle model of light.
This is interference, and it is explained best with the wave model of light.
A scientist shines light from a source onto a piece of metal, and no electrons are released by the metal. Increasing the intensity of the light source does not change this result. What is this effect, and how do scientists explain it?
(1 point)
Responses
This is the photoelectric effect, and it is best explained by the wave model of light.
This is the photoelectric effect, and it is best explained by the wave model of light.
This is the photoelectric effect, and it is best explained by the particle model of light.
This is the photoelectric effect, and it is best explained by the particle model of light.
This is the Doppler effect, and it is best explained by the wave model of light.
This is the Doppler effect, and it is best explained by the wave model of light.
This is the Doppler effect, and it is best explained by the particle model of light.
This is the photoelectric effect, and it is best explained by the particle model of light.
Which term is much more appropriate to use in the context of the particle model of light?
(1 point)
Responses
speed
speed
wavelength
wavelength
frequency
frequency
photon
photon
Which of the following is evidence that electromagnetic radiation can be described by the wave model?(1 point)
Responses
Electromagnetic radiation loses energy when it scatters off charged particles.
Electromagnetic radiation loses energy when it scatters off charged particles.
Atoms absorb and emit electromagnetic radiation at discrete energy values.
Atoms absorb and emit electromagnetic radiation at discrete energy values.
Light travels from faraway stars to Earth.
Light travels from faraway stars to Earth.
Light from a flashlight spreads out to illuminate a dark room.