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WorksheetsMirrors and Lenses(Chapters 16 and 17)
Total questions: 19
Worksheet time: 10mins
What does the law of reflection state?
The angle at which the light ray approaches the mirror surface is equal to the angle at which it departs from the mirror.
The angle at which the light ray approcahes the mirror surface is less than the angle at which it departs from the mirror.
The angle at which the light ray approaches the mirror surface is greater than the angle at which it departs from the mirror.
The angle at which the light ray approaches the mirror surface is 1/2 the angle at which it departs from the mirror.
If a light ray approaches the surface of a mirror at an angle of incidence of 65°, what is its angle of reflection?
63°
32.50°
65°
115°
None of the above
When does a reflection occur?
When a wave hits a surface and does not bounce off
When a wave is absorbed by a surface
Whenever a wave hits a surface and bounces off in a different direction
Which of the following is true? (You may select more than one answer)
The angle of incidence is equal to the angle of reflection.
Rays are always at right angles to the wave front.
The normal is a line drawn parallel to the surface of the mirror.
True or False: Specular reflections are responsible for the sharp clear images seen in mirrors.
False
True
When a road is wet, is it an example of a specular reflection or a diffuse reflection?
Specular Reflection
Diffuse Reflection
Which of the following describe a plane mirror? (You may select more than one answer)
Perfectly Flat
Image is upright
Image is not reversed
What is the equation for the height of an image for a plane mirror?
Image Height≠ Object Height
Image Height= 1/2(Object Height)
Image Height= -(Object Height)
Image height= Object Height
What is the equation for the image distance for a plane mirror?
Image Distance= -(Object Distance)
Image Distance= -1/2(Object Distance)
Image Distance= Object Distance
Image Distance≠ Object Distance
Which are examples of concave mirrors?
Which are examples of convex mirrors?
What is the center of curvature?
A straight line drawn through the center of curvature
Thr ays that reflect from the surface of the mirror
The distance from the surface of the mirror to the focal point
The center of the spherical shell with radius R of which the curved mirror is a section
True or False: The speed of light through any material is slower than its speed in a vacuum.
False
True
The index of refraction is a material is: (you may select more than one option)
A change in direction due to a change in speed
The factor by which it reduces the speed of light
An optical illusion created by the refraction of light
When can total internal reflection occur?
When light is trying to exit a material with a lower index of refraction.
When light is trying to stay in a material with a lower index of refraction.
When light is trying to enter a material with a lower index of refraction.
A material with a higher index of refraction would appear where on the visible spectrum?
Red end
Blue end
It would not appear on the visible spectrum
Which is true about lenses? (You may select more than one answer choice)
A lens is a device that takes advantage of the refraction of a ray of light and uses it to focus light.
Lenses that are thicker in the middle diverge light.
Lenses that are thicker in the middle converge light.
A concave lens curves outward while a convex lens curves inward
True or False: The location of the focal point is dependent on the index of refraction of both the lens and the material surrounding it.
True
False
When does a chromatic aberration occur?
When a lens bends light of different colors into different quantities.
When the lens has a surface that is a section of a sphere.
When the lens is polished into a non-spherical shape.
