In the following sequence of reactions :
The product C is :
Let A and B be two sets containing 2 elements and 4 elements respectively. The number of subsets of A×Bhaving 3 or more elements is
Assume that a drop of liquid evaporates by decrease in its surface energy, so that its temperature remains unchanged. What should be the minimum radius of the drop for this to be possible? The surface tension is T, density of liquid is ρ and L is its latent heat of vaporization.
Match List-I (Electromagnetic wave type) with List-II (Its association/application) and select the correct option from the choice given below the lists :
On a hot summer night, the refractive index of air is smallest near the ground and increases with height from the ground. When a light beam is directed horizontally, the Huygens' principle leads us to conclude that as it travels, the light beam :