The angle between incident ray and the mirror is 30° a. What is the angle of incidence b. What is the angle of reflection?
Angle of incidence is always equal to angle of reflection.Hence the angle of reflection will be 30 degree respectively
To determine the angle of incidence and angle of reflection, we need to understand the relationship between incident rays and reflected rays with respect to the surface or mirror.
a. Angle of Incidence (θi): This is the angle between the incident ray and the normal line drawn perpendicular to the surface of the mirror.
b. Angle of Reflection (θr): This is the angle between the reflected ray and the normal line drawn perpendicular to the surface of the mirror.
Here's how you can find the answers:
a. Angle of Incidence (θi):
The angle between the incident ray and the mirror is given as 30°. Since the angle of incidence is always measured between the incident ray and the normal line, you need to subtract this angle from 90° (since the normal line is always perpendicular to the surface). Therefore, the angle of incidence can be calculated as:
θi = 90° - 30°
θi = 60°
So, the angle of incidence is 60°.
b. Angle of Reflection (θr):
The angle of incidence is equal to the angle of reflection. So, in this case, the angle of reflection will also be 60°.
Therefore, the angle of reflection is 60°.
To summarize:
a. The angle of incidence is 60°.
b. The angle of reflection is 60°.