The answer is easy angle of incidence + angle of reflection=90 so both of them have to be 45 and 45
The Law of Reflection states the angle of reflection equals the angle of incidence. In this case, where the incident ray and reflected ray form a 90-degree angle, both the angle of incidence and the angle of reflection must be 45 degrees. ;
The angle of incidence and the angle of reflection, in this case, are both measured at 45 degrees due to the Law of Reflection. This law states that these angles are equal and when added together equal 90 degrees. Therefore, when the incident ray and the reflected ray form a 90-degree angle, each angle is 45 degrees.
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