Question
Download Solution PDFछोटे द्वारक के गोलाकार दर्पणों के लिए वक्रता त्रिज्या फोकस लंबाई से ________ होती है।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFअवधारणा:
- गोलाकार दर्पण: वह दर्पण जिसमें गोलाकार परावर्तन सतह होती है, उसे गोलाकार दर्पण कहा जाता है।
गोलाकार दर्पण के दो प्रकार हैं:
- उत्तल दर्पण: गोलाकार दर्पण जिसकी परावर्तक सतह वक्रता के केंद्र से दूर है एक उत्तल दर्पण है।
- यह हमेशा किसी भी वस्तु का एक आभासी प्रतिबिंब बनाता है।
- अवतल दर्पण: दर्पण जिसकी परावर्तक सतह अंदर की तरफ है एक अवतल दर्पण है।
- यह किसी भी वस्तु का वास्तविक और आभासी दोनों प्रतिबिंब बना सकता है।
व्याख्या:
वक्रता की त्रिज्या (R) = 2 × फोकस लंबाई (f)
छोटे द्वारक के गोलाकार दर्पणों के लिए, वक्रता की त्रिज्या, फोकस लंबाई से दोगुनी होती है। इसलिए विकल्प 4 सही है।
Last updated on Jul 22, 2025
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