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The angle of reflection is equal to the .......?
The angle of incidence
When is angle of incidence equal to angle of reflection?
The angle of incidence is ALWAYS equal to the angle of reflection! This is one of the laws of reflection.
Why is it easier to measure the angle of incidence an the angle of reflection n a flat surface?
When talking about reflection (normally with light), one works out the angle of incidence and the angle of reflection by drawing a line that is perpendicular (90 degrees) to the reflector and measuring the angle between this line and the ray of incidence/reflection. This line is called the normal line. It is easier to measure the angles of incidence and reflection on a flat surface, because it is easier to draw an accurate normal line.
Does refractive index vary with the angle of incidence?
No. The refractive index is an absolute measure that determines by how much the angle of incidence is different from the angle of reflection.
What is the difference of angle of incidence ad the angle of reflection?
0(zero) Angle of incidence = angle of reflection
