Mathematics · Light - Reflection and Refraction
An object is placed 30 cm in front of a concave mirror of focal length 20 cm. Using the mirror formula, what will be the image distance?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-60 cm✓
- 2-2.5 cm
- 3-12 cm
- 4-40 cm
Correct answer
-60 cm
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