Write term related to spherical mirror ?

brief information about it .​

spherical mirrors are the mirrors having curved reflecting surfaces.The curved reflecting surfaces may be convex or concave. They produce deliberately distorted images.

a high pressure system is a dense air mass that is usually cooler and drier than the surrounding air. a low pressure system is a less dense air mass that is usually wetter and warmer than the surrounding air.

in general, areas that experience high atmospheric pressure also experience fair weather. low pressure systems can cause the formation of clouds and storms. air usually flows from areas of high pressure to areas of low pressure..

ice to water 1 water to vapour 2 latent heat