Light has the highest velocity in which medium? flint glass n=1.70 barium glass n=1.60 crown glass n=1.523 water n=1.33 diamond n=2.45
diamond
water
flint glass
barium glass
2. Multiple Choice
5 seconds
1 pt
Light has the lowest velocity in which medium? flint glass n=1.70 barium glass n=1.60 crown glass n=1.523 water n=1.33 diamond n=2.45
diamond
water
flint glass
barium glass
3. Multiple Choice
30 seconds
1 pt
If a pulse of red light and a pulse of blue light travel in vacuum
The red pulse travels faster because its index of refraction is smaller
The blue pulse travels faster
The two pulses travel at the same speed
The relative speed depends on the exact wavelengths of the red and blue pulses
4. Multiple Choice
1 minute
1 pt
According to Willebord Snell, light passing from air to glass will cause the light to
maintain its original speed
accelerate while it is in glass
increase its speed
reduce its speed
5. Multiple Choice
30 seconds
1 pt
A ray of light traveling from air into crown glass strikes the surface at an angle of 30 degrees. What is the angle of refraction? (air n=1, crown glass n=1.532)
39.7 degrees
19.2 degrees
59.1 degrees
12.3 degrees
6. Multiple Choice
30 seconds
1 pt
According to the Law of reflection, a light ray striking a mirror
continues moving through the mirror in the same direction
moves into the mirror at a slightly different angle
bounces off the mirror toward the direction it came from
bounces off the mirror at the same angle it hits.
7. Multiple Choice
30 seconds
1 pt
Glass has a _____________ index of refraction than air.
Equal
Greater
Less
Impossible to say
8. Multiple Choice
30 seconds
1 pt
The fact the two angles are the same is an example of....
Refraction
Angle of Incidence
Law of reflection
Magnification
9. Multiple Choice
30 seconds
1 pt
This shows the phenomenon known as....
reflection
refraction
mirrors
focal point
10. Multiple Choice
2 minutes
1 pt
Light travels through a liquid at 2.25 EE 8 m/s. What is the index of the liquid?
1.33
1.0
1.523
2.45
11. Multiple Choice
30 seconds
1 pt
How does light behave as it enters these mediums?
continue its path as straight line.
bends toward the normal
bends away from the normal
reflects
12. Multiple Choice
30 seconds
1 pt
The velocity of light in vacuum is _______ m/s.
3x108
3x1012
3x106
3x1010
13. Multiple Choice
30 seconds
1 pt
The formula to calculate the refractive index is
n=cv
n=v/c
n=c/v
v=nc
14. Multiple Choice
2 minutes
1 pt
Light travels at 1.76 EE 8 m/s through an optical medium. What is the medium? diamond n=2.45 flint glass n=1.70 barium glass n=1.60 crown glass n=1.523
Crown Glass
Barium Glass
Flint Glass
Diamond
15. Multiple Choice
30 seconds
1 pt
When a red light ray travels from air into a glass block, its
velocity increases and its wavelength decreases
velocity decreases and its frequency stays the same
velocity decreases and its frequency increases
velocity remains the same and its wavelength decreases