EASY
10th CBSE
IMPORTANT
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What changes the shape of lens in the eye?

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>Very Short Answer Type Questions>Q 18
What do the ciliary muscles do when you are focusing on a nearby object?   
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Very Short Answer Type Questions>Q 23
Define the term "power of accommodation" of human eye.
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Very Short Answer Type Questions>Q 24

Give the scientific name of the part of the eye that carries signals from an eye to the brain.

EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Very Short Answer Type Questions>Q 25
Most of the refraction of light rays entering the eye occurs at the outer surface of the _____. (Retina / Cornea)
EASY
10th CBSE
IMPORTANT
Science for Tenth Class Part - 1 Physics>Chapter 6 - The Human Eye and The Colourful World>Very Short Answer Type Questions>Q 25
The ciliary muscles control the shape of _____. (eye lens/pupil)
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 26

Why is a normal eye not able to see clearly the objects placed closer than 25 cm?

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 27

What changes take place in the shape of eye-lens when the eye is focused on a near objects?

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 28

The eyes of a person are focused (i) on a nearby object and (ii) on a distant object, turn by turn. In which case the focal length of eye-lens will be the maximum?