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Test: Light - 1 - UPSC MCQ


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10 Questions MCQ Test Science & Technology for UPSC CSE - Test: Light - 1

Test: Light - 1 for UPSC 2024 is part of Science & Technology for UPSC CSE preparation. The Test: Light - 1 questions and answers have been prepared according to the UPSC exam syllabus.The Test: Light - 1 MCQs are made for UPSC 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Light - 1 below.
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Test: Light - 1 - Question 1

Light is a form of

Detailed Solution for Test: Light - 1 - Question 1

Light is a form of energy that enable us to see the different things around us.

Test: Light - 1 - Question 2

Splitting of white rays of light into seven colours is called

Detailed Solution for Test: Light - 1 - Question 2

Splitting of white rays of light into seven colour when passes through a prism is called dispersion of light.

Test: Light - 1 - Question 3

___________ help us to see the objects.

Detailed Solution for Test: Light - 1 - Question 3

Light enable us to see the objects around us. Reflected light enters the eyes to form image on retina.

Test: Light - 1 - Question 4

In human eyes, image is formed on

Detailed Solution for Test: Light - 1 - Question 4

In human eyes, image is formed on retina. Retina forms the backward parts of eye ball having rods and cones to form image.

Test: Light - 1 - Question 5

Object that emit light is called

Detailed Solution for Test: Light - 1 - Question 5

The objects that emit light is called luminous object. Sun, stars, bulb, tube etc are example of luminous object.

Test: Light - 1 - Question 6

Which type of lens is present in our eyes?

Detailed Solution for Test: Light - 1 - Question 6

Human eye contain convex lens made up of crystalline protein which is elastic and flexible.

Test: Light - 1 - Question 7

Speed of light is fastest in

Detailed Solution for Test: Light - 1 - Question 7

Speed of light is fastest in air. Speed of light decreases with increase in density. Light travels slowest in diamond.

Test: Light - 1 - Question 8

Band of seven colours obtained on screen after dispersion is called

Detailed Solution for Test: Light - 1 - Question 8

The band of seven colours obtained on screen when white colour of light possesses through a prism on screen after dispersion is called spectrum.

Test: Light - 1 - Question 9

What is the name of object through which light can pass?

Detailed Solution for Test: Light - 1 - Question 9

The object through which light can pass easily is called transparent object. Glass, water and thin plastic sheets are transparent object.

Test: Light - 1 - Question 10

Convex lens focus a real, point sized image at focus, the object is placed         

Detailed Solution for Test: Light - 1 - Question 10

Convex lens forms a real, point sized image at focus, the object is placed at infinity.

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