Physics, asked by rajmanikumar0852, 5 months ago

एक समुद्री तल लेंस के प्रत्येक तेल की वक्रता त्रिज्या 20 सेंटीमीटर तथा लेंस के पदार्थ का अपवर्तनांक 1.5 है लेंस की फोकस दूरी है

Answers

Answered by riyansikasahni201403

2

Answer:

18.5

Explanation:

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