Question

If the angle of reflection of a propagated ray is 35 degrees, calculate:

(a) The angle of deviation
(b) The angle of glance
(c) The angle of incidence

A. (a) 55 degrees, (b) 35 degrees, (c) 145 degrees
B. (a) 35 degrees, (b) 55 degrees, (c) 145 degrees
C. (a) 55 degrees, (b) 145 degrees, (c) 35 degrees
D. (a) 145 degrees, (b) 55 degrees, (c) 35 degrees

Answer 1

The angle of incidence is 35 degrees, the angle of deviation is 145 degrees, and the angle of glance is 145 degrees.

Step-by-step explanation:

The angle of reflection is the angle between the reflected ray and the normal to the surface of the object. According to the law of reflection, the angle of reflection is equal to the angle of incidence. Therefore, if the angle of reflection is 35 degrees, the angle of incidence is also 35 degrees.

The angle of deviation is the angle between the incident ray and the refracted ray. It can be calculated using the formula:

Angle of deviation = (180 degrees - angle of incidence) + (180 degrees - angle of reflection)

Angle of deviation = (180 degrees - 35 degrees) + (180 degrees - 35 degrees) = 145 degrees

The angle of glance is the complement of the angle of incidence. Therefore, if the angle of incidence is 35 degrees, the angle of glance is 180 degrees - 35 degrees = 145 degrees.