📊 Physics
Q. The frequency of AC mains supply in India is:
  • (A) 25 Hz
  • (B) 50 Hz
  • (C) 60 Hz
  • (D) 100 Hz
✅ Correct Answer: (B) 50 Hz

Explanation: The standard frequency of alternating current supplied in India is 50 Hz.

Explanation by: Tina Singh
The standard frequency of alternating current supplied in India is 50 Hz.

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