If several rays of light parallel to the
If several rays of light parallel to the principal axis are falling on a convex lens, which of the following statements is correct for the refracted ray?
यदि मुख्य अक्ष के समांतर प्रकाश की कई किरणें एक उत्तल लेंस पर पड़ रही हैं, तो अपवर्तित किरण के संबंध में निम्नलिखित में से कौन-सा कथन सही है?
Detailed Solution & Logic
They converge at a point on the opposite side of the lens./वे लेंस के विपरीत पक्ष में एक बिंदु पर अभिसरित होती हैं।
📘 Explanation
A convex lens is also called a converging lens because it brings parallel rays of light together.
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When light rays parallel to the principal axis fall on a convex lens,
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After refraction, all rays meet at a single point on the other side of the lens.
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This point is called the principal focus (F).
Therefore, parallel rays converge at the principal focus on the opposite side.
📗 व्याख्या
उत्तल लेंस (Convex Lens) को अभिसारी लेंस भी कहा जाता है क्योंकि यह समानांतर प्रकाश किरणों को एक बिंदु पर मिला देता है।
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जब मुख्य अक्ष के समानांतर किरणें उत्तल लेंस पर पड़ती हैं,
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अपवर्तन के बाद सभी किरणें लेंस के दूसरी ओर एक बिंदु पर मिलती हैं।
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इस बिंदु को मुख्य फोकस (Principal Focus) कहते हैं।
अतः किरणें विपरीत दिशा में एक बिंदु पर अभिसरित होती हैं।
⭐ Extra Facts / अतिरिक्त तथ्य
🔹 English
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Convex lenses are used in cameras, microscopes, and magnifying glasses.
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If rays pass through the optical center, they go undeviated.
🔹 Hindi
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उत्तल लेंस का उपयोग कैमरा, माइक्रोस्कोप और आवर्धक काँच में होता है।
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ऑप्टिकल सेंटर से गुजरने वाली किरण बिना मुड़े निकलती है।
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