
EM Test
Quiz
•
Physics
•
11th Grade
•
Medium
Corinne CTA]
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38 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which portion of the electromagnetic spectrum is used in a television?
infrared waves
X rays
radio waves
gamma waves
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which portion of the electromagnetic spectrum is used to identify fluorescent minerals?
ultraviolet light
X rays
infrared waves
gamma rays
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the wavelength of microwaves of 3.0 x 10^9 Hz frequency?
0.050 m
0.060 m
0.10 m
0.20 m
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When red light is compared with violet light,
both have the same frequency.
both have the same wavelength.
both travel at the same speed.
red light travels faster than violet light.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
If you are reading a book and you move twice as far away from the light source, how does the brightness at the new distance compare with that at the old distance? It is
one-eighth as bright.
one-fourth as bright.
one-half as bright.
twice as bright.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which best describes the image of a concave mirror when the object is located somewhere between the focal point and twice the focal-point distance from the mirror?
virtual, upright, and magnification greater than one
real, inverted, and magnification less than one
virtual, upright, and magnification less than one
real, inverted, and magnification greater than one
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When red light and green light shine on the same place on a piece of white paper, the spot appears to be
yellow.
brown.
white.
black.
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