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14.Waves and Sound
easy
A string fixed at both ends resonates at a certain fundamental frequency. Which of the following adjustments would not affect the fundamental frequency?
A
Tension is made four times and length is doubled
B
Tension is doubled and length is halved
C
Both tension and length are halved
D
Both length and tension are doubled
Solution
By $n = \frac{1}{{2l}}\sqrt {\frac{T}{m}} $
Standard 11
Physics