JAMB Physics 2003 Question 21

Question 21

Light and Reflection

If an object is placed between two parallel plane mirrors with their reflecting surfaces facing each other, how many images of the object will be formed?

A.Infinite
B.Eight
C.Four
D.Two

Show the answer and explanation

Answer: A (Infinite)

Explanation

For parallel mirrors the angle between them is 0°, so n = 360/0 − 1 is infinite: the reflections go on forever.