Question

An object 2cm tall is kept on the principal axis of a converging lens of focal length 8 cm. Find the position, nature and size of the image formed if the object is at 12cm from the lens. Also find the magnification produced by the lens.​ Please answer fast

Answer 1

The nature of image is inverted and the size is -4.

Explanation:

we are given:

h = 2 cm

f = + 8 cm

• For Convex lens

u= -12 cm

1/v-1/u = 1/f

1/v - 1/-12 = 1/ 8

1/v = 1/8 - 1/12

1/v = 3-2/24

1/v = 1/24

v= 24

m= v/u = h'/h

24/-12=h'/2

24 x 2/-12 = h'

- 4 = h'

The image is real inverted

Thus the nature of image ins inverted and the size is -4.

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