Light & Doppler

What is polarization of light?

• Polarization of light is the orientation of the oscillations of light waves in a specific direction.

• Polarization of light is the process of light absorption by a material.

• Polarization of light refers to the speed of light in a vacuum.

• Polarization of light is the color spectrum of light.

Explain how unpolarized light can be polarized.

• Heating the light source

• Mixing with a different wavelength

• Adding a diffraction grating

• Passing unpolarized light through a polarizing filter

What is the difference between linear and circular polarization?

• Linear polarization has the electric field rotating around the propagation direction, while circular polarization has the electric field oscillating in a single plane.

• Linear polarization has the electric field oscillating in a single plane, while circular polarization has the electric field rotating around the propagation direction.

• Linear polarization has the electric field oscillating in multiple planes, while circular polarization has the electric field rotating around the propagation direction.

• Linear polarization has the electric field rotating in a circular motion, while circular polarization has the electric field oscillating in a single plane.

How does a polarizing filter work?

• A polarizing filter selectively blocks light waves based on their orientation, reducing glare and reflections.

• A polarizing filter only works in low light conditions.

• A polarizing filter distorts the image by adding rainbow effects.

• A polarizing filter enhances the brightness of all colors equally.

What is the Doppler effect?

• The Doppler effect is the change in frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source.

• The Doppler effect is the change in speed of a wave in relation to an observer who is stationary relative to the wave source.

• The Doppler effect is the change in amplitude of a wave in relation to an observer who is moving relative to the wave source.

• The Doppler effect is the change in temperature of a wave in relation to an observer who is stationary relative to the wave source.

How does the Doppler effect affect the frequency of light from a moving source?

• The Doppler effect causes the frequency of light from a moving source to shift towards lower frequencies if the source is moving towards the observer and towards higher frequencies if the source is moving away from the observer.

• The Doppler effect causes the frequency of light from a moving source to shift towards higher frequencies if the source is moving towards the observer (blue shift) and towards lower frequencies if the source is moving away from the observer (red shift).

• The Doppler effect causes the frequency of light from a moving source to shift towards higher frequencies regardless of the source's motion.

• The Doppler effect causes the frequency of light from a moving source to remain constant regardless of the source's motion.