Question

different between a concave mirror and convex mirror.
full form of HIV
किन्हीं दो असंक्रामक रोगों के नाम लिखें।
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Answer 1

Answer:

Mirrors are smooth, polished or shining surfaces. They reflect the light beam and creates images. Basically, the reflecting surface of convex mirror bulges outside while concave mirror's bulges inwards

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Answer 2

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1.) Concave mirrors are spherical mirrors whose reflecting surface is on the inner side.

Convex mirrors are spherical mirrors whose reflecting surface is on the outer side

2.) HIV stands for human immunodeficiency virus.

3.) दो असंक्रामक रोग है छोटी माता (small pox) एवं हेपेटाइटिस ए (Hepatitis A)

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