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3. | Length of a string tied to two rigid supports is 40cm. Maximum length (wavelength in cm) of a stationary wave produced on it is? | |
A. | 20 | |
B. | 80 | |
C. | 40 | |
D. | 120 | |
Answer: Option B | |
Explanation: | |
When the string vibrates in one segment, |
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