Question

ite the charaterstic of
length is 25cm
d at 50cm El
Convex lens hau
D
when the object
75cm This
is Conver
لا​

Answer 1

Explanation:

The focal length of the convex lens is 25 cm.

When the object is kept at a distance of 50 cm from the lens, the distance is equal to twice the focal length. Hence, the image would be real and inverted and would be formed at the same distance from the lens as the object but on the other side of the lens.

When the object is kept at a distance of 75 cm from the lens, the distance is greater than the focal length. Hence, the image would be real and inverted and would be formed on the .other side of the lens.

The distance of the image can be calculated from the lens formula 1v−1u=1f.

⇒v=ufu+f=−75×25−75+25=37.5 cm.

Hope it is helpful to you