What is the Tyndall effect? Explain with an example.

Important Questions on The Human Eye and The Colourful World

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Short Answer Type Questions>Q 8

What happens when a beam of sunlight enters a dusty room through a window? Explain your answer.

MEDIUM

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Short Answer Type Questions>Q 9

Why does the sky appear blue on a clear day?

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Short Answer Type Questions>Q 10

Why does the sky appear dark (or black) to an astronaut instead of blue?

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Short Answer Type Questions>Q 11

Why does the sun appear red at sunrise?

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Short Answer Type Questions>Q 12

Why does the sun appear red at sunset?

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Short Answer Type Questions>Q 13

Why are the 'danger signal' lights red in colour?

MEDIUM

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Long Answer Type Questions>Q 14

Draw a neat and labelled diagram of the experimental set up for observing the scattering of light in a colloidal solution of Sulphur to show how the sky appears blue, and the sun appears red at sunrise and sunset.

EASY

10th CBSE

IMPORTANT

Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Long Answer Type Questions>Q 14

Out of blue light and red light, which one is scattered more easily?