Mathematics · Light - Reflection and Refraction
एक वस्तु को 20 cm फोकल लंबाई वाले अवतल दर्पण के सामने 30 cm की दूरी पर रखा गया है। दर्पण सूत्र का उपयोग करके, प्रतिबिंब की दूरी क्या होगी?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1-40 cm
- 2-12 cm
- 3-2.5 cm
- 4-60 cm✓
सही उत्तर देखें
-60 cm
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