If an object is at infinity in front of a convex lens, the image is formed:
If an object is at infinity in front of a convex lens, the image is formed:
यदि कोई वस्तु उत्तल लेंस के सामने अनंत पर है, तो प्रतिबिंब ___________ पर निर्मित होता है?
Detailed Solution & Logic
at F/ F पर
Explanation
When an object is placed at infinity, the light rays coming from it are parallel to the principal axis.
A convex lens converges parallel rays to its principal focus (F).
Therefore, the image is formed at the focus (F) on the other side of the lens.
Image characteristics:
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Position: At F
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Nature: Real
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Inverted
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Highly diminished (point-sized)
Extra Facts:
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This principle is used in cameras, telescopes, and the human eye to focus distant objects.
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The focal length of a convex lens determines where the image forms.
व्याख्या
जब कोई वस्तु अनंत पर होती है, तो उससे आने वाली प्रकाश किरणें मुख्य अक्ष के समानांतर होती हैं।
उत्तल लेंस इन समानांतर किरणों को अपने मुख्य फोकस (F) पर अभिसरित (इकट्ठा) कर देता है।
इसलिए प्रतिबिंब फोकस (F) पर बनता है।
प्रतिबिंब के गुण:
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स्थिति: F पर
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प्रकृति: वास्तविक (Real)
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उल्टा (Inverted)
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अत्यंत छोटा (बिंदु के समान)
अतिरिक्त तथ्य:
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इसी सिद्धांत का उपयोग कैमरा, दूरबीन और मानव आंख में दूर की वस्तुओं को देखने के लिए किया जाता है।
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उत्तल लेंस की फोकस दूरी (Focal length) प्रतिबिंब की स्थिति तय करती है।
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