Question

Explain:

i) angle of incidence

iii) angle of glancing

ii) angle of reflection

iv) angle of deviation​

Answer 1

Explanation:

1 ray of light hits a surface at a point. From that point the line straight up, at 90 degrees to the surface, is called the normal. The angle between the normal and the ray of light is called the angle of incidence. You measure the angle from the normal, which is 0 degrees, to the ray of light.

2. The glancing angle of reflection is the angle between a surface and a beam of particles. ... The glancing angle of incidence is the angle between an incident beam and the surface.

3. The law of reflection states that the angle of reflection equals the angle of incidence—θr = θi. The angles are measured relative to the perpendicular to the surface at the point where the ray strikes the surface.

4. Angle of Deviation Definition: The angle of deviation is defined as the angle which is obtained from the difference between the angle of incidence and the angle of refraction created by the ray of light travelling from one medium to another that has a different refractive index.