Question

describe how to compare the angles of incidence and refraction for a ray of light entering a glass block​

Answer 1

The angle formed at the point of incidence between the incident ray and the normal is called the angle of incidence. The angle formed between the refracted ray and the normal is called the angle of refraction

Answer 2

The angle formed at the point of incidence between the incident ray and the normal is called the angle of incidence . the angle formed between the refracted ray and the normal is called angle of refraction .

Explanation

light rays bend or refract if they enter a glass block at an angle when they pass from air into glass, they bend inwards and slow down . they travel in a straight line through the glass into air , they bend outwards and speed up again