Physics · Geometrical Optics
JEE Main 2025 — 7 April, Evening Shift — Question 55
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A) : Refractive index of glass is higher than that of air.
Reason (R): Optical density of a medium is directly proportionate to its mass density which results in a proportionate refractive index.
In the light of the above statements, choose the most appropriate answer from the options given below
- Option A:Correct
(A) is correct but (R) is not correct
- Option B:
(A) is not correct but ( ) is correct
- Option C:
Both (A) and (R) are correct but (R) is not the correct explanation of (A)
- Option D:
Both (A) and (R) are correct and (R) is the correct explanation of
Answer: A
Step-by-step solution
Speed of light for air for glass and opted density ( )
does not depends on density of medium so is correct but is incorrect
Answer key and solution verified before publishing.
Practise Geometrical Optics
Start with this question, then two more from the same chapter — with a tutor that explains every step. Free.
- Exam
- JEE Main 2025
- Subject
- Physics
- Chapter
- Geometrical Optics
- Topic
- Introduction to Refraction of Light (Snell's Law)