If light enters an equilateral glass prism (n=1.50) with an angle of incidence of 45 degree what is the angle of refraction as the beam emerges from the prism ?Note that an equilateral triangle has three 60° angles.

1 kWh = ?

Select the institution that does not belong to the group.

The force of gravitation between two bodies in the universe does NOT depend on :

Which Indian author has chronicled the life in the Kumaon hills in the book ‘Things to Leave Behind’?