EASY
10th CBSE
IMPORTANT
Earn 100

A near-sighted person wears eyeglasses of power -4.5 D for distant vision. His doctor prescribes a correction of +0.75 D in near vision section of his bifocals, which measured relative to main part of the lens. What is the focal length of his distant viewing part of the lens?

Important Questions on Human Eye and Colourful World

MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>Practice Problems : 1>Q 2
A near-sighted person wears eyeglasses of power -4.5 D for distant vision. His doctor prescribes a correction of +0.75 D in near vision section of his bifocals, which measured relative to main part of the lens. What is the focal length of his near viewing section of the lens?
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 1
The retina consists of 
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 2
The blind spot on retina has:
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 3
The ciliary muscles help in:
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 4
When a person sees nearer objects, such as reading a book, the image is formed:
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 5
The focal length of the eye lens increases when eye muscles:
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 1
Describe and state the function of the following parts of eye.
choroid
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 1
Describe and state the function of the following parts of eye.
cornea