Question

A concave mirror produces five times enlarged real image of an object placed at 8 cm in front of it. The image is located at a distance of

• A. 40 cm behind the mirror
• B. 40 cm in front of the mirror
• C. 1.6 cm behind the mirror
• D. 1.6 cm in front of the mirror

Answer 1

Answer: (B)

40 cm in front of the mirror

A concave mirror creates an enlarged image as real. So, the image is created in front of the mirror.

Now, magnification, $m=\frac{v}{u}=5$

Given, $u=8cm$

So, $\frac{v}{8}=5$

or, $v=8\times 5=40cm$

The image is located $40cm$ in front of the mirror.