Back to RAY OPTICS
JEE PHYSICS MCQ: RAY OPTICS
1
Medium
1 of 1
Understanding
+4 | -1
Assertion (A): Shining of diamond is due to the phenomenon of total internal reflection
Reason (R): Refractive index of diamond is large. hence critical angle is small.
Reason (R): Refractive index of diamond is large. hence critical angle is small.
View answer and explanation
Correct option: A
If both assertion and reason are true and reason is a correct explanation of the assertion.
Option A (If both assertion and reason are true and reason is a correct explanation of the assertion) is correct because the shining of a diamond is due to total internal reflection, and the high refractive index of diamond leads to a small critical angle, facilitating total internal reflection.
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 , 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 . He views the cavity in the tooth of a patient by holding the mirror at a distance of from the cavity. The magnification is
All of the following statements are correct except
