What could you do to decrease the velocity that waves travel on a string? Select

Question

What could you do to decrease the velocity that waves travel on a string? Select all that apply. Question 8 options: 1) Increase the tension on the string. 2) Decrease the mass per unit length of the string (i.e., get a lighter string). 3) Decrease the tension on the string. 4) Increase the amplitude of the waves. 5) Decrease the amplitude of the waves. 6) Increase the mass per unit length of the string (i.e., get a heavier string). 7) Decrease the length of the string. 8) Increase the length of the string.

Explanation / Answer

What could you do to decrease the velocity that waves travel on a string?

Ans :
The speed of a wave is only altered by alterations in the properties of the medium through which it travels.

so if Increase mass per unit length or decrease length or decrease tension in string , the wave velocity will decrease

and it is given by expression,

v = sqrt(T/(m/L))

T is Tension in string, (m/l) is mass per unit length

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