Name the phenomenon due to which a swimming pool appears less deep than it really is.

Name the optical phenomenon due to which the sky appears blue.

Name the phenomenon which causes the twinkling of stars.

Name the phenomenon due to which the stars seem higher in the sky than they actually are.

The setting sun appears higher in the sky than it really is.

The setting sun appears higher in the sky than it really is

What is the name of the phenomenon due to which the right side of an object appears to be left side of the image in a plane mirror ?

Name the phenomenon which is made use of in an electric generator.