A student places an object at 20 cm in front of a concave mirror of focal length 10 cm, using the sign convention for spherical mirrors. What is the correct value and sign for the image distance?

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

Options

1. (A) +10 cm
2. (B) -10 cm
3. (C) +20 cm
4. (D) -20 cm

Verified Answer

Option (D): -20 cm

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