Question

A bulb is placed between two plane mirrors inclined at an angle of $60{}^{\circ }$ . The number of images formed is

• A. 5
• B. 6
• C. 4
• D. 3

Answer 1

Answer: (A)

As $\frac{360{}^{\circ }}{\theta }=\frac{360{}^{\circ }}{60{}^{\circ }}=6$ Which is even $\therefore$ $n=\frac{360{}^{\circ }}{\theta }-1=6-1=5$