When an object is placed 10 cm from a convex lens, the lens forms a virtual image 15 cm away on the same side. Find the focal length of the lens.

Subject: General Awareness | Topic: Science | Difficulty: MEDIUM

Options

1. (A) + 30 cm
2. (B) −10 cm
3. (C) −30 cm
4. (D) + 10 cm

Verified Answer

Option (A): + 30 cm

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