A String Is Stretched with a Tension of 120 N $\times$

question 28

Multiple Choice

A string is stretched with a tension of 120 N.The string has a length of 2.5 meters.The velocity of wave propagation along the string is 220 m/s.The mass per unit length of the string is

• A) 5.8 \(\times\) 10^-3 kg/m.
• B) 5.0 \(\times\) 10^-3 kg/m.
• C) 4.2 \(\times\) 10^-3 kg/m.
• D) 3.7 \(\times\) 10^-3 kg/m.
• E) 2.4 \(\times\) 10^-3 kg/m.

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