Which of the following actions is necessary in order to tune a string to produce a note of an octave higher than its fundamental?
a
doucling the length of the string
b
reducing the tension by half
c
reducing the mass per unit length
d
increasing the tension four times
Explanation
Correct Option
bNo explanation available
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Hydrocarbon1
5 years ago
you guys are wrong D is correct
to double F
since F and T are related by
Fα√
F₁=F
F₂=2F
T₁=T
T₂=?
F/2F=√T/√T₂
make T₂ subject of the formula
√T₂=(2F√T)/F
F cancels F
√T₂=2√T
square both sides
T₂=4T
which means that multiplying tenstion by 4 will make frequency double
