Question

Assertion: kerosene having higher refractive index is optically denser than water, though it's mass density is less than that of water

Reason:speed of light decides whether medium is optically denser,or optically rarer. Optically denser medium may not possess greater mass density

Is reason the correct explanation for Assertion???

Answer 1

Answer:

Both a and r are true and r is correct explanation of a

Answer 2

Answer:

Thus the reason and assertion are not only true but the reason is the correct explanation of the assertion. Therefore the answer is ).