A cockroach is flying towards a plane mirror in perpendicular direction with a velocity of 4 mm s^(1) . Find the speed of its image in the mirror and also find out the angle of incidence , angle of reflection and angle of deviation.

A cockroach is flying towards a plane mirror in perpendicular directio

1.	A cockroach is flying towards a plane mirror in perpendicular direction with a velocity of 4 mm s^(1) . Find the speed of its image in the mirror and also find out the angle of incidence , angle of reflection and angle of deviation.
Answer» Solution :`V_(C)=4 "MM" s^(-1)` Speed of the image of COCKROACH is equal to the spped of cockroach. Image speed =4` mm s^(1)` As its is approcahing the MIRROR perpendicularly , its angle of incidence=angle of reflection =ZERO Angle of deviation `=180-2i` `""=180-0` `""=180^(@)`