Question
[42]. अवतल दर्पण में वस्तु फोकस पर हो तो प्रतिबिंब कहाँ बनता है? / Where is the image formed when an object is at the focus of a concave mirror?
Option 1 : अनंत पर / At infinity
Detailed Solution
सही उत्तर अनंत पर / At infinity है।
फोकस से चलने वाली किरणें परावर्तन के बाद समानांतर हो जाती हैं, अतः प्रतिबिंब अनंत पर बनता है। / Rays from the focus become parallel after reflection, so the image forms at infinity.
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prepsnap.in • Mock TestQuestion:
[42]. अवतल दर्पण में वस्तु फोकस पर हो तो प्रतिबिंब कहाँ बनता है? / Where is the image formed when an object is at the focus of a concave mirror?
Correct Answer: अनंत पर / At infinity
फोकस से चलने वाली किरणें परावर्तन के बाद समानांतर हो जाती हैं, अतः प्रतिबिंब अनंत पर बनता है। / Rays from the focus become parallel after reflection, so the image forms at infinity.