Question

Why do We keep frequency constant instead of keeping vibrating length constant to verify second law of vibrating string?​

Answer 1

Answer:

HERE IS YOUR ANSWER :-

When the length of a string is changed, it will vibrate with a different frequency. Shorter strings have higher frequency and therefore higher pitch. When a musician presses her finger on a string, she shortens its length.

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Answer 2

Explanation:

law the verify the second law of the simple pendulum