Question

show your own working

Sumati did some preliminary experiment with the lenses and found out that the magnification of the eyepiece(L2) is 3.If in her experiment with L2 she found an image at 24 cm from the lens, at what distance did she put the object?

(a)72 cm


(b)12 CM


(c)8 cm


(d)6 cm

Answer 1

Explanation:

m=v/u

here magnification(m)=3 and image

distance(v)=24

therefore:

3=24/u

24u=3

u= 24/3

u=8

At a distance of 8 cm the object should be placed