Question

the refractive index of hot air is .......than cool air

Answer 1

The refractive index of hot air is less than cool air. This is because cold air is more denser than hot air.

Answer 2

Hola mate !!✌️✌️

here's your answer....

the refractive index of hot air is ....✔️less... than cool air . this is so because hot air is less denser than cooler.

$hope\: it\: helps\: !!$❤️❤️