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    				| 1. | 
                                    Angle of incidence 15 degree into angle of reflection | 
                            
| Answer» SINCE the angle between the mirror and the INCIDENT ray is 75 degrees, the angle of INCIDENCE (i.e., angle between the incident ray and the normal) will be 90–75=15 degrees. Now, from the laws of reflection, we know that angle of incidence is equal to angle of reflection. Therefore, angle of reflection is 15 degrees. | |