Question

Which of the following set of materials represents the minimum material required for determining the focal length of a convex lens by obtaining the image of a distant object on a screen in your school laboratory?

(i)Set A - A candle, a match box, a convex lens, a lens holder, a screen with stand.

(ii)Set B - A lens holder, a convex lens, a concave lens, a measuring scale.

(iii)Set C - A convex lens, a lens holder, a screen with a stand, a measuring scale.

(iv)Set D - A convex lens, a burning candle, a screen with a stand, a lens holder.


(a) Set A

(b) Set B

(c) Set C

(d) Set D

Answer 1

set B
hope it will help you