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Test: Light


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10 Questions MCQ Test Science Class 7 | Test: Light

Test: Light for Class 7 2022 is part of Science Class 7 preparation. The Test: Light questions and answers have been prepared according to the Class 7 exam syllabus.The Test: Light MCQs are made for Class 7 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Light below.
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Test: Light - Question 1

Light is a form of

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Light is a form of energy that enables us to see different objects around us.

Test: Light - Question 2

Bouncing back of light in same medium is called

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Bouncing back of rays of light after hitting a reflecting surface is called reflection of light.

Reflection of light is the phenomenon of bouncing back of light in the same medium on striking the surface of any object.

Test: Light - Question 3

When light bounces off a surface, the surface is

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When rays of light bounces from a surface, the surface is called reflector.

Test: Light - Question 4

We can see an object when it

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We can see an object when it reflects or emits rays of light that enter our eyes.

Test: Light - Question 5

A common magnifying glass is an example of

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A common magnifying glass is an example of convex lens of short focal length.

Test: Light - Question 6

Concave mirror is used in head light of vehicles as

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Concave mirror is used in the headlight of a vehicle as it reflects a parallel beam of light.when the headlight is placed at the focus of the concave mirror it allows the light to spread out to infinity.

Test: Light - Question 7

Shaving mirrors are usually

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Shaving mirrors are usually concave mirrors to form virtual, erect and magnified image of face.

Test: Light - Question 8

The lens present in human eye is made up of

Detailed Solution for Test: Light - Question 8

Imagine a transparent protein cadbury’s gems. that is how a lens in the eye look like. a biconcave lens. although the concavity on the inner surface is more when compared to concavity on the outer surface of the lens. The concavity of the lens can be changed with the contraction and relaxation of the ciliary muscles.

 

Test: Light - Question 9

Line drawn perpendicular to the reflecting surface at the point of incidence is called

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The imaginary line perpendicular to the reflecting surface is called normal.

Test: Light - Question 10

Concave lens is also known as

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Concave lens is also known as diverging lens as it diverges the rays of light falling on it.

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