Home
Class 14
GENERAL KNOWLEDGE
What is the unit of Power of a ...

What is the unit of Power of a lens?

A

Joule

B

Newton

C

Dioptre

D

Watt

Text Solution

Verified by Experts

The correct Answer is:
B
Unit of Power of a lens - Dioptre Unit of Energy - Joule
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

a) What do you understand by the power of a lens? Name one factor on which the power of a lens depends. b) What is the unit of power of a lens? Define the unit of power of a lens. c) A combination of lenses for a camera two converging lenses of focal length 20 cm and 40 cm and a diverging lens of focal length 50 cm. Find the power and focal length of the combination.

The unit of focal power of a lens is

The unit of power of a lens is

What is the sign of the power of (i) a convex lens (ii) a concave lens ?

What is the sign of the power of the lens used to correct myopia ?