Back to RAY OPTICS
JEE PHYSICS MCQ: RAY OPTICS
1
Medium
1 of 1
Understanding
+4 | -1
Assertion: A reflecting type of telescope is preferred over refracting type in astronomy.
Reason: A reflecting type of telescope is free from chromatic aberration and spherical aberration.
Reason: A reflecting type of telescope is free from chromatic aberration and spherical aberration.
View answer and explanation
Correct option: A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion
Option A is correct because reflecting telescopes are preferred due to being free from chromatic and spherical aberrations, which are present in refracting telescopes.
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
