chapter 11 review
The black fur of a black-and-white bunny is due to light
absorption
If an electric charge is rapidly shaken up and down,
an electromagnetic wave is produced.
When visible light is incident upon transparent glass, most atoms in the glass
are forced into vibration
The direction of vibration for an electron and the plane of polarization of the light it emits
are the same
The different colors of the spectrum
blend from one to another
Refraction occurs when light passing from one medium to another
change speed
The white light from the Sun is a
composite of light of all the visible frequencies
The source of electromagnetic waves is vibrating
electric charges
Most of the waves in the electromagnetic spectrum are
invisible
Relative to its average speed in air, the average speed of a beam of light in glass is
less
According to the law of reflection, the incident ray, reflected ray, and normal between them
lie in the same place
A changing electric field induces a changing
magnetic field
Electromagnetic waves consist of
oscillating electric and magnetic fields
Visible light that shines on a pane of transparent glass
produces a chain of absorptions and re-emissions through the glass.
When ultraviolet light is incident upon glass, most atoms in the glass
resonate
When light from air passes through a prism, light of all frequencies
slow down
When light from the air enters a raindrop, the light
slows down
The color of an object depends on the colors of
the light that illuminates them
consider light energy that is momentarily absorbed in glass and then reemitted. Relative to the absorbed light, the frequency of the reemitted light is
the same
Non-reflected ultraviolet light that shines on a pane of transparent glass
transforms to thermal energy
Polarization is a property of
transverse waves
Electrons in glass have a natural frequency in the
ultraviolet region of the spectrum
Which of these has a higher frequency than visible light?
ultraviolet wave
Which of the following occupies the smallest percentage of the electromagnetic spectrum?
visible light