EASY
10th CBSE
IMPORTANT
Earn 100

A person needs a lens of power -4.5 D for correction of her vision. What is the focal length of the corrective lens?

Important Questions on Human Eye and Colourful World

EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 3

A person needs a lens of power -4.5 D for correction of her vision. What is the nature of the corrective lens?

MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 1
Explain the structure and functioning of Human eye. How are we able to see near as well as distant objects?
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 2
When do we consider a person to be myopic or hypermetropic? Explain using diagrams how the defects associated with myopic and hypermetropic eye can be corrected?
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 3
Draw a diagram to show the formation of image of a distant object by a myopic eye? How can such a defect be remedied?
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 3
State two reasons due to which myopia may be caused.
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 3
A person with a myopic eye cannot see objects beyond a distance of 1.5 m. What would be power of corrective lens used to restore proper vision?
MEDIUM
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 4
What is hypermetropia? Draw diagrams to show image formation by an object by hypermetropic eye.
EASY
10th CBSE
IMPORTANT
Core Science Physics>Chapter 2 - Human Eye and Colourful World>EXERCISE - 2A>Q 4
Draw diagrams to show correction made by a suitable lens for hypermetropic eye.