909575
Question 1
Question
Light is propagating is a direction directly away from you, with an electric field that appears to be rotating in its orientation in the counterclockwise direction. The polarization state of such a wave is:
Answer
-
Randomly polarized.
-
Plane polarized.
-
Left-circularly polarized.
-
Right-circularly polarized.
Question 2
Question
A birefringent material is best described as:
Answer
-
Having two different transmission axes.
-
Having atoms with two different resonant frequecies.
-
Circularly polarizing natural light.
-
Having two different indices of refraction.
Question 3
Question
In a Young's Double Slit interference pattern, the fourth maximum has an irradiance that is roughly:
Answer
-
As bright as the central maximum.
-
Half as bright as the central maximum.
-
8% as bring as the central maximum.
-
0.08% as bright as the central maximum.
Question 4
Question
Which of the following is true for all lenses:
Answer
-
All magnified images are inverted.
-
All virtual images are inverted.
-
All real images are inverted.
-
All diminished images are inverted.
Question 5
Question
The radius of curvature of a convex mirror of focal length -8 centimeters is:
Answer
-
-4 centimeters.
-
16 centimeters.
-
4 centimeters.
-
-16 centimeters.
Question 6
Question
Virtual images are so called because:
Answer
-
Light rays that form the image only appear to come from the position where the image is.
-
The image is too small to be seen with the naked eye.
-
The image can only be projected onto a screen.
-
The image is located behind the lens or mirror.
Question 7
Question
The spectrum observed when white light is shone through a prism is best explained by:
Answer
-
Diffraction
-
Dichroism
-
Distortion
-
Dispersion
Question 8
Question
The irradiance of a light ray is proportional to:
Answer
-
The frequency of the light ray.
-
The frequency of the light ray squared.
-
The amplitude of the electric field of the light ray.
-
The amplitude of the electric field of the light ray squared.
Question 9
Question
One reason why the sky appears blue is because:
Answer
-
Much more red light than blue light is absorbed by air atoms.
-
Red light is reflected by the atmosphere.
-
Blue light is scattered to a greater extent than red light.
-
Higher energy light waves have more penetration through the atmosphere.
Question 10
Question
Which of the following is true: I) A reflected beam always has the same irradiance as the incident beam; II) a reflected beam lies in the same plane as the incident beam; III) a reflected beam always makes an angle θ = sin-1(n t/n i) with the normal to the interface.
Answer
-
I only.
-
I and II.
-
II and III.
-
II only.
Want to create your own Quizzes for free with GoConqr? Learn more.