If the initial tension on a stretched string is doubled, then the ratio of the initial and final speeds of a transverse wave along the string is:
1. $$1:2$$
2. $$1:1$$
3. $$\sqrt{2}:1$$
4. $$1:\sqrt{2}$$
Subtopic: Â Travelling Wave on String |
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From NCERT
NEET - 2022
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A uniform rope, of length $$L$$ and mass $$m_1$$, hangs vertically from a rigid support. A block of mass $$m_2$$ is attached to the free end of the rope. A transverse pulse of wavelength $$\lambda_1$$ is produced at the lower end of the rope. The wavelength of the pulse when it reaches the top of the rope is $$\lambda_2$$${}_{}$. The ratio $$\frac{\lambda_2}{\lambda_1}$$ is:
1. $$\sqrt{\frac{m_1+m_2}{m_2}}$$
2. $$\sqrt{\frac{m_2}{m_1}}$$
3. $$\sqrt{\frac{m_1+m_2}{m_1}}$$
4. $$\sqrt{\frac{m_1}{m_2}}$$

Subtopic: Â Travelling Wave on String |
Â 69%
From NCERT
NEET - 2016
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