Explain the formation of mirage.

Important Questions on Refraction of Light at Plane Surfaces

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 6

Explain the refraction of light through a glass slab with a neat ray diagram.

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 7

Why do stars appear twinkling?

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 1

A light ray is incident on air-liquid interface at $45°$ and is refracted at $30°$. What is the refractive index of the liquid? For what angle of incidence will the angle between reflected ray and refracted ray be $90°$?

EASY

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 2

In what cases does a light ray not deviate at the interface of two media?

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 3

Place an object on the table. Look at the object through the transparent glass slab. You will observe that it will appear closer to you. Draw a ray diagram to show the passage of light ray in this situation.

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 4

Why does a diamond shine more than a glass piece cut to the same shape?

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 1

Why is it difficult to shoot a fish swimming in water?

MEDIUM

9th Telangana Board

IMPORTANT

Physical Science Class 9>Chapter 4 - Refraction of Light at Plane Surfaces>Let us Improve our learning>Q 2

Explain why a test tube immersed at a certain angle in a tumbler of water appears to have a mirror surface for a certain viewing position?