Question

13.Assertion : Red light travels faster in glass than green light. Reason: The refractive index of glass is less for red light than for green light. *
(A) If both Reason (R) and Assertion (A)are correct and Reason is the correct explanation of assertion.
(B)If both Assertion (A) and Reason (R)are correct, but Reason (R) is not the correct explanation of Assertion.
(C) If Assertion (A) is correct but Reason (R)is incorrect
(D) If Assertion (A) is incorrect but Reason (R) is correct​

Answer 1

(A) Both reason and assertion are true and reason is correct explanation for assertion.

Explanation:

• Refractive index is the ratio of speed of light in vacuum to the speed of light in a medium.
• η$\frac{}{}$$=\frac{c}{v}$ where c is the speed of light in vacuum and v is the speed of light in the medium.
• Refractive index for red light in glass = 1.509
• Refractive index for green light in glass = 1.515
• Refractive index of glass for red light is less than than for green light.
• This is the reason that speed of red is more than green light because refractive index is inversely proportional to speed of light in that medium.
• And this is why red light bends less than green light when entering glass.

Answer 2

Answer:

Both assertion and reason are correct and reason is the correct explanation of assertion. :)

Explanation:

because red light have less ratio of refrective index in glass in comparision to green light. :)

pls mark answer as brainliest :)