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15 questions
Your image behind a plane mirror is at a distance equal to
a. half your height.
b. half your distance from the mirror.
c. your distance in front of the mirror.
d. slightly more than your distance in front of the mirror.
Refraction occurs when a light wave crosses a boundary and changes
speed and direction.
intensity.
frequency.
amplitude.
The image formed by a convex mirror is
real and upright
real and inverted
virtual and upright
none of these
Which has the SHORTEST wavelength and therefore the highest frequency/most energy? Hint: These waves are also used in cancer treatments.
Gamma Rays
Radio Waves
Ultraviolet Rays
X-rays
Which has the LONGEST wavelength and therefore the lowest frequency/energy? These waves are used in TV broadcasting, Wifi, and texting.
Gamma rays
Visible light
Radio waves
Infrared rays
Reorder the following from shortest wavelength to the longest wavelength.
gamma waves
x-rays
ultraviolet waves
visible light
infrared rays
(a) reflection happens when light hits a completely smooth surface.
When an object is placed on the focal point in front of a converging lens, the image produced is ___.
real, reduced, and inverted
real, enlarged, and inverted
real, true, and inverted
There is no image
inverted and smaller
inverted and larger
upright and smaller
upright and larger
Arrange the colors of the visible light spectrum from highest wavelength to lowest wavelength.
Red
Orange
Yellow
Green
Blue
An image that forms where light seems to come from a point but light rays don't actually meet is a
virtual image
real image
Inverted Image
clear image
The speed of light in an unknown medium is measured to be 2 x 108 m/s. The speed of light in air is 3 x 108 m/s. What is the index of refraction of the medium? (n = c/v)
Which figure represents the path light takes through a converging lens?
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