MCQ
The angle between an incident ray and the plane mirror is $30^\circ $. The total angle between the incident ray and the reflected ray will be:
- ✓$30^\circ$
- B$60^\circ$
- C$90^\circ$
- D$120^\circ$
✓
Answer
Correct option: A.
$30^\circ$
The angle between the incident ray and the mirror is $30$ degrees.
Angle of incidence = angle of reflection.
90 degrees is going directly into the mirror.
So, $90 – 30 = 60$ degrees.
The total angle between the incident ray and the reflected ray will be $120$ degree.
Angle of incidence = angle of reflection.
90 degrees is going directly into the mirror.
So, $90 – 30 = 60$ degrees.
The total angle between the incident ray and the reflected ray will be $120$ degree.
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