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WorksheetsElectromagnetic Waves, Reflection, Refraction
Total questions: 13
Worksheet time: 15mins
Light entering a new medium at an angle will change direction because it changes ___.
frequency
polarization
amplitude
speed
energy
Select all that are TRUE about Reflection & Refraction.
Refraction is when light strikes & bounces off an object
Reflection is when light strikes & bounces off an object
Reflection is when light bends as it passes through a substance
Refraction is when light bends as it passes through a substance
A ray of light in oil (n = 1.75) is angled at 25° to the normal when it encounters a layer of water, where it makes an angle of 33.8° to the normal in the water. The index of refraction of water is ___.
1.29
1.33
0.739
0.760
1.00
Order these radiant energy forms from least energy to most energy
radio
microwave
infrared
visible
In a vacuum/empty space, the speed of light...
can vary
is always 3.0×108 m/s
is slower than the speed of light through a medium
is less than the speed of sound in a vacuum
Two polarizing filters are set up so the transmitted light is at a maximum intensity.
Through which angle should polariser 2 be rotated so that no light is transmitted?
45º
60º
90º
180º
Solve this problems using the equation:
c = λ·f
If an AM radio station broadcasts at
9.95 x 105 Hz, what is the wavelength of this radiation?
6.59 x 10-28 m
1.01 x 10-6 m
3.32 x 10-3 m
302 m
What is the angle of incidence?
The angle at which light bends in water.
The angle at which light arrives at a surface.
The angle at which light is absorbed by an object.
The angle at which light bounces off a surface.
If light moves at 1.24×108 m/s in diamond, the index of refraction of diamond is ___.
2.42
1.24
0.413
55
3.72×1016
When light passes from air to water, what happens to the speed of the light?
speeds up
slows down
stays the same
Which diagram shows the correct image of the key in a plane mirror?
The unknown angle in the picture is ___.
73°
27°
90°
146°
17°
