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WorksheetsLight Waves
Total questions: 20
Worksheet time: 34mins
Which of the following IS NOT a behavior that light waves can undergo when they reach a boundary between two media?
stopping at the edge of the boundary
reflection off of the boundary
transmission into the boundary
refraction through the boundary
Reflection is to bouncing as refraction is to:
bending.
breaking.
dissipating.
halting.
This drawing illustrates the ________________________ of a light wave.
refraction
reflection
diffraction
dispersion
What does LASER stand for?
Light Amplification by Stimulated Emission of Radiation
Light Alternation of Static Electromagnetic Radiation
Limited Alteration of Simulated Electron Radii
Long-Term Allocation of Substantial Energy Resources
Suppose you shine a laser directly at a mirror so that the laser strikes it perpendicularly. The angle of reflection is 0.5°. What does this tell you about the mirror?
The mirror’s surface is not perfectly flat. It is angled 0.5° in the location that the laser is striking.
The incident light ray struck the mirror at a 0.5o angle.
99.5% of the ray transmitted through the mirror while only 0.5% of the ray actually reflected.
The mirror is cracked and angles upward at 0.5o.
Who built the first laser, and when?
Theodore H. Maiman in 1960
Wernher Von Braun in 1944
Albert Einstein in 1915
Neils Bohr in 1935
Which of the following IS NOT a component of a laser?
fuel injector
gain medium
high reflector
output coupler
When a light ray strikes a smooth, flat surface, what is the relationship between the angle of incidence and the angle of reflection?
They are equal.
The angle of incidence is twice that of the angle of reflection.
The angle of reflection is twice that of the angle of incidence.
They combine to add up to 180o.
In this diagram, which is the angle of incidence?
Angle A
Angle B
Angle C
Angle D
A concave mirror is shaped like the inner surface of a sphere. How do you think light rays will reflect off a concave mirror?
Reflected rays converge toward the center line of a concave mirror.
Reflected rays diverge away from the center line of a concave mirror.
Reflected rays reflect straight back at the angle that they came in.
Reflected rays are absorbed by a concave mirror.
The way that a surface reflects light depends on its texture. Rough surfaces such as cloth and wood tend to scatter light, reflecting it in many different directions. This type of reflection is called:
diffuse reflection.
specular reflection.
incident reflection.
distorted reflection.
The way that a surface reflects light depends on its texture. Smooth, shiny surfaces such as mirrors reflect light in a uniform (or close to uniform) direction. This type of reflection is called:
specular reflection.
metallic reflection.
crystal reflection.
sharpened reflection.
This type of telescope is referred to as a ________________ telescope.
reflecting
refracting
diffracting
diffusing
Objects that generate their own light are called:
luminous objects.
illuminated objects.
shiny objects.
reflective objects.
Humans generate light in the visible region of the electromagnetic spectrum.
True
False
In order to view an object, you must sight along __________ at that object.
a line
a circle
an ellipse
a triangle
Light is known to behave in a very predictable manner. If a ray of light could be observed approaching and reflecting off of a flat mirror, then the behavior of the light as it reflects would follow a predictable law known as the law of reflection. Which diagram below illustrates the law of reflection?
A ray of light is incident towards a plane mirror at an angle of 30-degrees with the mirror surface. What will be the angle of reflection?
60o
30o
90o
45o
Light that is reflected or transmitted through certain media so that all vibrations are restricted to a single plane is called:
polarized light.
ambient light.
direct light.
indirect light.
When light rays strike a rough surface, they are:
scattered.
focused.
absorbed.
refracted.
