Explain the relation between angle of incidence and angle of refraction with an experiment.

Below experiment explains the relation between angle of incidence and angle of refraction. Apparatus : A plank, white chart, protractor, semicircular glass disc, pencil and laser light. Procedure : Take a drawing sheet on a cardboard and mark different angles ( on both sides of " MM " line ) . Place a semicircular glass disc, so that its diameter coincides with the line MM . Send a laser light along a line with makes 15 ° with NN . Let it is incident angle. Measure its corresponding angle of refraction by observing light coming from outside the glass slab. Repeat this experiment with various values of angle of incidence, refraction. From the above experiment we will observe that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant. sin i sin r = constant

E M B I B E

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 10

EASY

10th Andhra Pradesh Board

IMPORTANT

Earn 100

Which of the following event is not related to refraction of light?

50% studentsanswered this correctly

Important Questions on Refraction of Light at Plane Surfaces

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10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 11

When light rays pass through a lens, they bend and change their direction. This is called _____ of light.

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10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 12

If a ray of light strikes the surface of separation at _____

(90 / 45)

degrees, the ray goes undeviated.

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10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 13

Fermat's principle states that the path taken by a light ray between two points is always a _____ line

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10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 14

n_{1} \sin i = n_{2} \sin r

, is called _____ law.

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10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 15

You are given water, mustard oil, glycerine and kerosene. Out of these media a ray of light incident obliquely at the same angle would bend the most in _____.

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10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 16

Explain with the help of a labelled ray diagram, why a pencil partly immersed in water appears to be bent at the water surface. State whether the bending of pencil will increase if water is replaced by another liquid which is optically more denser than water. Give reason for your answer.

EASY

10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 17

How does the light have to enter the glass:

To produce a large amount of bending?

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10th Andhra Pradesh Board

IMPORTANT

Physical Science Crash Course (Based on Revised Syllabus-2023)>Chapter 3 - Refraction of Light at Plane Surfaces>Exercise>Q 18

What are the two conditions in which no refraction takes place?