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Olympiad Test: Light - CTET & State TET MCQ


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20 Questions MCQ Test NCERT Textbooks (Class 6 to Class 12) - Olympiad Test: Light

Olympiad Test: Light for CTET & State TET 2024 is part of NCERT Textbooks (Class 6 to Class 12) preparation. The Olympiad Test: Light questions and answers have been prepared according to the CTET & State TET exam syllabus.The Olympiad Test: Light MCQs are made for CTET & State TET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Light below.
Solutions of Olympiad Test: Light questions in English are available as part of our NCERT Textbooks (Class 6 to Class 12) for CTET & State TET & Olympiad Test: Light solutions in Hindi for NCERT Textbooks (Class 6 to Class 12) course. Download more important topics, notes, lectures and mock test series for CTET & State TET Exam by signing up for free. Attempt Olympiad Test: Light | 20 questions in 20 minutes | Mock test for CTET & State TET preparation | Free important questions MCQ to study NCERT Textbooks (Class 6 to Class 12) for CTET & State TET Exam | Download free PDF with solutions
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Olympiad Test: Light - Question 1

The splitting of white light into seven colours is called

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The phenomenon of splitting of white light into seven colours is called dispersion of light.

Olympiad Test: Light - Question 2

Virtual image is always

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Virtual image is always erect and magnified or diminished and behind the mirror.

Olympiad Test: Light - Question 3

Concave lens always forms

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Concave lens always forms virtual and erect image smaller in size.

Olympiad Test: Light - Question 4

In which of the following medium light travels fastest?

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Light travels faster in rarer medium than denser medium. So, light travels fastest in air.

Olympiad Test: Light - Question 5

Which colour of light scattered least

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Red colour of light have longer wavelength than blue, green and orange and is scatter least.

Olympiad Test: Light - Question 6

White light consist of

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White light consists of 7 colours which can be visualised when white light passes through a prism.

Olympiad Test: Light - Question 7

Band of seven colour of light appeared on screen when white light passes through is prism is called

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Band of seven colours of light appeared on screen when white light passes through a prism is called spectrum.

Olympiad Test: Light - Question 8

Real image is always

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Real image always inverted. Real image can be obtained on screen.

Olympiad Test: Light - Question 9

In a concave mirror the reflecting surface is

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In a concave mirror the reflecting surface is bent towards inward.

Olympiad Test: Light - Question 10

Plane mirror always form image that is

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Plane mirror always form image that is virtual, erect and of same size of object.

Olympiad Test: Light - Question 11

The optical phenomena, twinkling of stars, is due to         

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The refraction of light induced by the earth's atmosphere is known as atmospheric refraction. Atmospheric refraction occurs because the different layers of the earth's atmosphere vary in terms of optical densities. It is caused by the varied optical densities of the earth's atmosphere layers.

Olympiad Test: Light - Question 12

____________ refers to collection of rays.

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Beam is collection of rays originating from a source of light.

Olympiad Test: Light - Question 13

All the rays of light parallel to principle axis after reflection passes through

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All the rays of light parallel to principle axis after reflection pass through focus of the mirror or lens.

Olympiad Test: Light - Question 14

Sky appear red during

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Sky appears red during sunrise and sunset because rays of light travel longer distance during sun rise and sunset to scatter other colour light.

Olympiad Test: Light - Question 15

The mirror used as rear view mirror in vehicle is

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Convex mirrors have a very wide field of view as they are curved outwards. So, the convex mirrors enable the driver to view a much larger area than a plane mirror. The images produced are erect and their size is much smaller than the object. Hence, it is used as a rear view mirror in automobiles to see objects at the backside of the vehicle.

Olympiad Test: Light - Question 16

Rainbow is formed due to ____________ light through tiny water droplets.

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Rainbow is formed due to dispersion of light through tiny water droplets present in atmosphere just after the rain.

Olympiad Test: Light - Question 17

Which one is a transparent object?

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Reading glass is a transparent object as light can easily pass through it.

Olympiad Test: Light - Question 18

In convex mirror, the reflection of light takes place at

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In convex mirror, the reflection of light takes place at bulging out surface of the mirror.

Olympiad Test: Light - Question 19

A diverging mirror is

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A diverging mirror is convex mirror that always form virtual, erect and diminished image of object.

Olympiad Test: Light - Question 20

In regular reflection, angle of incidence is always equal to

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In regular reflection, angle of incidence is always equal to angle of reflection.

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