Question

A 4 cm tall object is placed on the principal axis of a convex lens. The

distance of the object from the optical centre of the lens is 12 cm and its

sharp image is formed at a distance of 24 cm from it on a screen on the

other side of the lens. If the object is now moved a little away from the

lens, in which way (towards the lens or away from the lens) will he have

to move the screen to get a sharp image of the object on it again ? How

will the magnification of the image be affected ?




pls with brief explaination ​

Answer 1

Answer:

object height 4cm

distance from the lenses 12cm

image distance 24cm

if the object move little away from lens then image move towards the lens

magnification of image increased