Q. The focal length of the lens in a photographic camera is 5 cm. What is the power of the lens?

  • (A) + 5 D
  • (B) + 10 D
  • (C) + 15 D
  • (D) + 20 D
✅ Correct Answer: (D) + 20 D

Published by Admin ⭐ 38.37K Points at 15-Jun-2022 06:44 pm in Physics

You must be Logged in to update hint/solution

📝 Notes by Other Students/ Teachers

📊 Question Analytics

👁️
394
Total Visits
📽️
4 y ago
Published
🎖️
Admin
Publisher
📈
94%
Success Rate