Question 142: Waves

Question

A steel wire with mass per unit length $$7.0 	imes 10^{-3} \mathrm{~kg} \mathrm{~m}^{-1}$$ is under tension of $$70 \mathrm{~N}$$. The speed of transverse waves in the wire will be:

Accepted Answer

Speed of transverse wave $=\sqrt{\frac{T}{\mu}}$ $=\sqrt{\frac{70}{7 	imes 10^{-3}}}=100 \mathrm{~m} / \mathrm{s}$

Answer

$$10 \mathrm{~m} / \mathrm{s}$$

Answer

$$50 \mathrm{~m} / \mathrm{s}$$

Answer

$$100 \mathrm{~m} / \mathrm{s}$$

Answer

$$200 \pi\mathrm{~m} / \mathrm{s}$$

Waves

A steel wire with mass per unit length $7.0 \times 10^{-3} \mathrm{~kg} \mathrm{~m}^{-1} is under tension of 70 \mathrm{~N}$. The speed of transverse waves in the wire will be:

Choose the correct answer: