PERISCOPE
Mathematics
3rd Grade
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5 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the angle of mirror in periscope
35
45
55
65
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many mirrors there are in the periscope?
5
4
3
2
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How does periscope works?
A periscope works by using two mirrors to reflect light from one mirror to another for the person to see the things that is behind a high obstacle.
It works by using one mirror to reflect for us to see things behind a high obstacle.
It works by using one glass to reflect for us to see things behind a high obstacle.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the working principle of a periscope?
A periscope works on the Refraction of Light.
A periscope works on the Law of Reflection.
A periscope works on the Dispersion of Light.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What is the type of mirror use in periscope?
Convex mirror
Concave mirror
Plane mirror
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