Question

To determine the focal length of a convex lens
by obtaining a sharp image of a distant object,
the following steps were suggested which are not
in proper sequence.
1. Hold the lens between the object and the
screen.
II. Adjust the position of the lens to form a
sharp image.
III. Select a suitable distant object.
IV. Measure the distance between the lens and
the screen.
The correct sequence of steps to determine the
focal length of the lens is
(a) III, I, II, IV (b) III, I, IV, 11
(c) III, IV, II, 1 (d) I, II, III, IV​

Answer 1

Answer:

I think it's answer is option (b)lll,l,lV,ll