Question

Find the focal length of a convex lens is 10 centimetre. A candle of height 12 centimetre is placed at a distance of 20 cm from that lens. The position, nature and length of image of candle?

Answer 1

:.It's position is at (first C) Center of curvature. ie = 20cm from th lens

& Nature is real n inverted

& Length of image will be of same size.

ie. = to 12cm

THANK YOU

Explanation:

Here,

Focal length is 10 cm.

:. Center of curvature is = 2F

=2×10

=20cm

Since, the candle is placed

at the center of curvature.

The image formed will be

real, inverted & of the same size.

:.It's position is at (first C) Center of curvature. ie = 20cm from th lens

& Nature is real n inverted

& Length of image will be of same size.

ie. = to 12cm

THANK YOU