JEE PHYSICS MCQ: RAY OPTICS

1 Medium

1 of 1

Application +4 | -1

A convex lens made of material of
refractive index 1.5 and having a focal length of
10 cm is immersed in a liquid of refractive index
3.0. The lens will behave as

View answer and explanation

Correct option: B

diverging lens of focal length 10 cm

Option B (diverging lens of focal length 10 cm) is correct because when the lens is immersed in a liquid with a higher refractive index, it behaves as a diverging lens with the same magnitude of focal length.

More Questions from RAY OPTICS

Practice All Chapter MCQs →

In refraction, light waves are bent on passing from one medium to the second medium, because, in the second medium A double convex lens is made of glass which has its refractive index 1,45 for violet rays and 1.50 for red rays. If the focal length for violet ray is

20 \mathrm{~cm}

, the focal length for red ray will be Which light rays undergoes two internal reflection inside a raindrop, which of the rainbow is formed? A piece of plane glass is placed on a word with letters of different colours. The letters which appear minimum raised are A dentist has a small mirror of focal length

16 {~mm}

. He views the cavity in the tooth of a patient by holding the mirror at a distance of

8 {~mm}

from the cavity. The magnification is All of the following statements are correct except