Back to RAY OPTICS
JEE PHYSICS MCQ: RAY OPTICS
1
Easy
1 of 1
Understanding
+4 | -1
Statement-I: The twinkling of star is due to reflection of light.
Statement-II: The velocity of light changes while going from one medium to the other.
Statement-II: The velocity of light changes while going from one medium to the other.
View answer and explanation
Correct option: D
If Statement-I is false but Statement-II is true.
The correct answer is D (If Statement-I is false but Statement-II is true) because twinkling is due to refraction, and the speed of light changes between media.
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