Question

If the distance between an object and its two times magnified virtual image produced by a curved mirror is 15 cm, the focal length of the mirror must be:

• A. \( \frac{10}{3} \) cm
• B. \( -12 \) cm
• C. \( -10 \) cm
• D. \( 15 \) cm

Hint:

For a concave mirror, a magnified virtual image is always formed when the object is placed between the focal point and the mirror.