Question

An object of size 2 cm is placed at a distance of 40 cm from a glass lens, close to the  principal axis of the lens, and the lens forms an image of size 2 cm. What is the size of the image and what type of image is formed if the lens and the object, in same arrangement, is immersed into water? The R. I. of the lens is 1.5 and of water is 1.33

A

Real image, upright and 4 cm in size

B

Virtual image, upright and 4 cm in size

C

Real image, upright and 2 cm in size

D

Virtual image, upright and 2 cm in size

Hard
Solution
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Correct option is A)

(1)
(2)

Drivididing
(1) & (2)
=
image distance
object distance
So By
as the sign is - ve , image is Real
And as its Real its in same side of object : its
upright, Mognification
object is of in size
Hence option is correct

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