Question

Assertion(A) : refractive index of diamond is 2.42. Reason(R): the speed of light in air is less than the speed of light in diamond. (1) both(A)and(R) are true and (R) is correct explanation of (A) (2) both (A)&(R)are true but (R) is not correct explanation of (A) (3) (A) is true and (R) is false. (4) (A) is false and (R) is true​

Answer 1

Answer:

Option 3

Assertion is true and Reason is false .

Explanation:

» we know that ;

Refractive index ( μ ) = speed of light / Velocity of light

As refractive index is more ; speed of light decreases .

so ; Speed of light in diamond should be less than that of air .

hope it helps you .

Answer 2

Answer:

3

Explanation:

Here A is correct but B is false

Refractive index of diamond is 2.42

Speed of light is greater than speed of light in diamond