A ray of light is incident on mirror m\(_1\) and after reflection is incident on mirror m\(_2\) as shown in the diagram above. Calculate the angle of reflection of the ray at mirror m\(_2\).
Attached Figure / Diagram
A
60\(^0\)
B
90\(^0\)
C
30\(^0\)
D
120\(^0\)
Verified Correct Answer: C.
Physical Principles & Numerical Solution
i at m\(_1\) = 60^\circ → r = 60^\circ at m\(_1\) (law of reflection i ^\circ = r ^\circ) i at m\(_2\) = 30^\circ
i = r,
∴ r = 30^\circ
Source: WAEC / JAMB / NECO Classroom Archive (Record #76365)