Name two factors on which the focal length of a lens depends.

Open in App

Solution

Focal length of a lens depends on the refractive index of the glass from which it is made, and on the curvature of its two surfaces.

Suggest Corrections

Similar questions

Q. The focal length of a lens depends on :

Q. On what factors does the focal length of a lens depend?
[2 MARKS]

(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 contains two converging lenses of focal lengths 20 cm and 40 cm and a diverging lens of focal length 50 cm. Find the power and focal length of the combination.

Name two factors on which the pressure on a surface depends.

Q. Name two factors on which the weather of a place depends.

Join BYJU'S Learning Program