WorksheetsLight
Total questions: 25
Worksheet time: 25mins
Why does the straw appear to be bent?
light is reflected
light is absorbed
light is turned
light is refracted
What do we call a material that light can travel through?
(a)
In the illustration, the light ray striking the object is-
What is the angle of reflection equal to?
The angle of refraction
The angle of incidence
The angle of absorption
The angle of light
What is the angle of incidence?
The angle at which light bends in water.
The angle at which light hits a surface.
The angle at which light is absorbed by an object.
The angle at which light bounces off a surface.
A light ray is incident from water to air. Which of the refracted rays is correct?
A
B
C
D
A ray of light travels from air into a glass block.
Which diagram correctly shows the path of the ray through the glass block?
A
B
C
D
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
flint glass n=1.70
barium glass n=1.60
crown glass n=1.523
water n=1.33
diamond n=2.45
Light travels from air (n = 1.00) into a second material. The incident ray of light hits the surface at angle of 64o and the refracted ray enters the second material at an angle of 32o. What is the index of refraction of the second material? n1sin(Θ1) = n2sin(Θ2)
1.4
0.90
0.53
1.7
If light travels through a piece of glass at 2.1 x 108 m/s, what is the index of refraction of the glass?
1.14
1.43
2.10
6.3
Light is able to pass through __________________ materials
Transparent
Dull
Shiny
Opaque
Light traveling through air encounters a second medium which slows the light to 1.88 x108 m/s. What is the index of the second medium?
1.00
1.498
2.45
1.60
