36 A light ray falls on a plane mirror and deviates by 60

Last updated: 6/20/2023

36 A light ray falls on a plane mirror and deviates by 60 then the angle of reflection will be 1 30 2 60 3 90 4 180 37 A stone of mass m is tied to a string of length at one end and by holding second end it is whirle into a horizontal circle than work dong hu tansion when it covers half rouolution will be