Light: Mirrors and Lenses
CBSE · Class 8 · Science
Flashcards for Light: Mirrors and Lenses — CBSE Class 8 Science. Quick Q&A cards covering key concepts, definitions, and formulas.
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What are spherical mirrors?
Answer
Mirrors whose reflecting surfaces are spherical are called spherical mirrors. They are of two types: concave mirror and convex mirror.
गोलाकार दर्पण क्या होते हैं?
Answer
जिन दर्पणों की परावर्तक सतह गोलाकार होती है, उन्हें गोलाकार दर्पण कहते हैं। यह दो प्रकार के होते हैं: अवतल दर्पण और उत्तल दर्पण।…
What is a concave mirror?
Answer
A concave mirror has a reflecting surface curved inwards. It is a converging mirror.
अवतल दर्पण क्या होता है?
Answer
अवतल दर्पण की परावर्तक सतह अंदर की ओर मुड़ी हुई होती है। यह एक अभिसारी दर्पण है।…
What is a convex mirror?
Answer
A convex mirror has a reflecting surface curved outwards. It is a diverging mirror.
उत्तल दर्पण क्या होता है?
Answer
उत्तल दर्पण की परावर्तक सतह बाहर की ओर मुड़ी हुई होती है। यह एक अपसारी दर्पण है।…
How is a concave mirror made with reflective coating?
Answer
If reflective coating is applied on the outer curved surface, it forms a concave mirror.
प्रतिबिम्बक लेप के साथ अवतल दर्पण कैसे बनाया जाता है?
Answer
यदि बाहरी घुमावदार सतह पर परावर्तक परत लगाई जाती है, तो यह एक अवतल दर्पण बनाता है।…
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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