Science, asked by kumarkaran94059, 6 months ago

प्रश्न ग- एक उत्तल दर्पण की फोकस दूरी 20 सेमी है
उसकी वक्रता त्रिज्या होगी
(अ)10 सेमी (ब)15 सेमी (स)20 सेमी (द)40 सेमी
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की
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.
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Answers

Answered by raushanjahan307

1

Explanation:

R= 20

C= ?

C= 2*R

C= 2*20

C= 40 .

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