Question

11. An object, a convex lens of focal lengt
cet, a convex lens of focal length 20 cm and a plane mirror are arranged as shown in
figure. How far behind the mirror is the position of the final image
" is the position of the final image of the object ?
20.
12 cm
► 10 cm
as > IS
VÁ
TRỊ TH
(1) 40 cm
(3) 20 cm
.
(2)
(4)
30 cm
10 cm
old​

Answer 1

40cm far away behind the mirror