
untitled
Quiz
•
Physics
•
10th Grade
•
Practice Problem
•
Easy
ALPHA CENTRE
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16 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Refraction of light by the earth’s atmosphere due to variation in air density is called
atmospheric reflection
atmospheric dispersion
atmospheric scattering
atmospheric refraction
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The colored light that refracts most while passing through a prism is
Red
Yellow
Blue
Violet
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a natural phenomenon which is caused by the dispersion of sunlight in the sky?
Rainbow
Twinkling of stars
Advanced sunrise and delayed sunset
Stars seem higher than they actually are
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
One cannot see through the fog, because
refractive index of the fog is very high
fog absorbs light
light is scattered by the droplets
light suffers total reflection at droplets
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The danger signals installed at the top of tall buildings are red in colour. These can be easily seen from a distance because among all other colours, the red light
is scattered the most by smoke or fog
is absorbed the most by smoke or fog
is scattered the least by smoke or fog
moves fastest in air
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following phenomena contributes significantly to the reddish appearance of the sun at sunrise or sunset?
Dispersion of light
Scattering of light
Total internal reflection of light
Reflection of light from the earth
View Answer
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When a white light falls on a triangular prism, the colour of light which will deviate the least is
violet
green
blue
red
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