Physics · Light Reflection and Refraction
An object is placed at a distance of 10 cm in front of a concave mirror. Its image is formed at a distance of 15 cm on the same side. The focal length of the mirror is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 130 cm
- 2-30 cm
- 36 cm
- 4-6 cm✓
Correct answer
-6 cm
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