class 8 optics
Quiz
•
Physics
•
8th Grade
•
Medium
jonida stafaj
Used 10+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
An object which produces its own light is called ………………source
luminous
transparent
non-luminous
opaque
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Materials which don’t allow light to pass through them are called…………………
luminous
transparent
non-luminous
opaque
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The complete dark region of the shadow is called……………………
penumbra
umbra
translucent
non-luminous
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
.............. is the perpendicular line to the point where the light strikes the boundary
incident
reflected
refracted
normal
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The number of images between two mirrors depends upon
mirror
image
angle
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
The effect of bending of light is called
reflection
refraction
light
normal
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Speed of light in air is …………………. Km/s
300000
200000
250000
100000
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