The angle of reflection.
The angle between the mirror and the normal is called the angle of incidence. It is the angle formed between the incident ray (incoming light ray) and the normal (a line perpendicular to the surface of the mirror) at the point of incidence.
The angle between the incident ray and the reflected ray is equal to the angle between the incident ray and the normal. When the mirror is rotated, the normal also rotates by the same angle. Therefore, the angle between the incident ray and the reflected ray will still be 20 degrees.
The angle of incidence is the angle formed by the incident ray and the normal line drawn to the point of incidence on a mirror. It is measured from the incident ray to the normal line.
The angle of incidence is defined as the angle between the incoming light and the line that is normal to the surface at the point where the light 'hits' the surface. The reflectrion angle is the same as the incidence angle. If the angle between the incident ray and the mirror ray is 50, then the angle of incidence is half of this. That is, 25 degrees.
As the incident ray coincides the normal so the incident angle is 0 degree and angle of incident equals to the angle of reflection so the ray after reflection retraces its orignal path. By mohit agarwal
When a ray of light is directed at a mirror, it will reflect off the mirror's surface at an equal angle but in the opposite direction. This is known as the law of reflection. The angle of incidence, which is the angle between the incident ray and the normal to the mirror's surface, will be equal to the angle of reflection, which is the angle between the reflected ray and the normal.
The angle of incidence of mirrors is the angle between the incident ray (incoming light ray) and the normal (perpendicular line) to the surface of the mirror at the point where the ray strikes the mirror.
We measure them on the either side of the mirror and not on the side of the normal to the surface of the mirror because, if the mirror or any reflecting surface is bent, then there will be a difference between the angle of incidence and angle reflection which can be avoided by measuring those angles on the either side of the mirror.
The angle of incidence is the angle between the incident ray and the normal (perpendicular) to the reflecting surface.
If the ray hits the mirror at an angle of 30 degrees with the mirror surface, the complementary angle that the ray makes with the normal (perpendicular) to the mirror at the point of incidence is (90 - 30) = 60 degrees and since angle of incidence is equal to angle of reflection in a plane mirror, the angle of reflection is 60 degrees.
The incident angle to the Mirror will be 10 deG.
The angle between the incident ray and the normal is called the angle of incidence.