MEDIUM
10th CBSE
IMPORTANT
Earn 100

How does the ciliary muscle of the human eye help in the functioning of the eye?

Important Questions on The Human Eye and The Colourful World

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
The near point of hypermetropia person is 75 cm. If the person uses glasses having power +1.0 D, then calculate the distance of distinct vision for him.
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 8
Explain the formation of rainbow with neat ray diagram.
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 9
Why the sun is seen about two minutes before actual sunrise? Illustrate your answer with neat sketch.
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 10
Draw two diagrams to explain refraction and dispersion.
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 11
Answer the following questions: (a) What do you understand by the term ‘presbyopia’? (b) Mention any two causes of this defect. (c) How is it corrected?
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 12
An eye has a far point of 2 m.
(a) What type of lens would he require to increase the far point to infinity? (b) Calculate the power of lens. (c) What is the defect?
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 13
Explain how a normal eye can see objects lying at various distances clearly.
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 14
How the amount of light entering the eye is controlled?