Define atmospheric refraction.

Important Questions on The Human Eye and The Colourful World

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 2

Why planets do not twinkle at night?

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 3

What causes atmospheric refraction?

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 4

By how many times the day would have been shorter if the earth had no atmosphere? Justify.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 5

Why do stars seem higher than they actually are? Illustrate.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 6

Draw a diagram to illustrate the effect of atmospheric refraction at sunset.

MEDIUM

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 7

Why do stars twinkle at night?

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 8

Name any three effects produced by the atmospheric refraction.

EASY

10th CBSE

IMPORTANT

Concise Physics A Textbook of Science for Class X>Chapter 2 - Part -1>The Human Eye and The Colourful World>Q 9

If we look at the objects through the hot air over a fire, the objects appear to be moving slightly. Why?