Question

Assertion (A): When objects are observed through hot air, they appeared to be moving slightly.
Reason (R): Hotter air is optically denser and the cooler air is optically rarer.

[A] Both A and R are True and R is the correct explanation of A.
[B] Both A and R are True and R is NOT the correct explanation of A.
[C] A is True but R is false
[D] A is False but R is true ​

Answer 1

Answer:

c) A is true but R is false.

R is false cause cooler air is optically denser as the atom particles are near to each other but in case of hotter air the atom particles expand due to rise in temperature so it is optically rarer.