Q: 18 (CDS-I/2008)

A ray of light is incident on a plane mirror at an angle 30° with the normal at the point of incidence. The ray will be deviated from its incidence direction by what angle ?
question_subject: 
Maths
question_year: 
2008
question_exam: 
CDS-I
stats: 
0,104,208,80,128,104,0