WorksheetsRefraction of Light
Total questions: 10
Worksheet time: 6mins
Name
Class
Date
1.
How does light behave as it enters these mediums?
a)
continue its path as straight line.
b)
bends toward the normal
c)
bends away from the normal
d)
reflects
2.
According to Willebord Snell, light passing from air to glass will cause the light to
a)
maintain its original speed
b)
accelerate while it is in glass
c)
increase its speed
d)
reduce its speed
3.
We can see objects because of_______
a)
reflection
b)
refraction
c)
transmission
d)
diffraction
4.
The velocity of light in vacuum is _______ ms(-1)
a)
3x108
b)
3x1012
c)
3x106
d)
3x1010
5.
Absolute refractive index of any medium is always _______.
a)
less than 1
b)
greater than 1
c)
1
d)
0
6.
The formula to calculate the refractive index is
a)
n=cv
b)
n=v/c
c)
n=c/v
d)
v=nc
7.
Swimming pools and the ocean look shallower than they really are due to:
a)
reflection
b)
dispersion
c)
refraction
d)
total internal reflection
8.
The separation of white light into its component colors is known as:
a)
polarization
b)
refraction
c)
reflection
d)
dispersion
9.
If a pulse of red light and a pulse of blue light travel in vacuum
a)
The red pulse travels faster because its index of refraction is smaller
b)
The blue pulse travels faster
c)
The two pulses travel at the same speed
d)
The relative speed depends on the exact wavelengths of the red and blue pulses
10.
A light ray hits a plane surface at 20 degrees. What is the angle between the incident and reflected rays.
a)
20o
b)
40o
c)
70o
d)
30o
100 %
