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JEE PHYSICS MCQ: RAY OPTICS

1 Medium

1 of 1

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Real image can be obtained from

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Correct option: D

All of these

Option B (Concave mirror) is correct because concave mirrors can form real images when the object is placed beyond the focal point.

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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