1. | increase by a factor of \(20\). |
2. | increase by a factor of \(10\). |
3. | decrease by a factor of \(20\). |
4. | decrease by a factor of \(10\). |
1. | \(5\) | 2. | \(7\) |
3. | \(8\) | 4. | \(3\) |
Two sound waves with wavelengths \(5.0~\text{m}\) and \(5.5~\text{m}\), respectively, propagate in gas with a velocity of \(330~\text{m/s}\). How many beats per second can we expect?
1. \(12\)
2. \(0\)
3. \(1\)
4. \(6\)
A transverse wave propagating along the \(x\text-\)axis is represented by:
\(y(x,t)=8.0\sin\left(0.5\pi x-4\pi t-\frac{\pi}{4}\right)\), where \(x\) is in meters and \(t\) in seconds. The speed of the wave is:
1. \(4\pi\) m/s
2. \(0.5\) m/s
3. \(\frac{\pi}{4}\) m/s
4. \(8\) m/s
Which one of the following statements is true?
1. | Both light and sound waves in the air are transverse. |
2. | The sound waves in the air are longitudinal while the light waves are transverse. |
3. | Both light and sound waves in the air are longitudinal. |
4. | Both light and sound waves can travel in a vacuum. |
A triangular transverse wave is propagating in the positive \(x\text-\)direction. The velocity of \(P\) at this instant will be:
1. vertically upward.
2. vertically downward.
3. at rest.
4. cannot be determined.
1. | Wave \(1\) has the highest wave speed as well as the maximum transverse string speed. |
2. | Wave \(2\) has the highest wave speed, while Wave \(1\) has the maximum transverse string speed. |
3. | Wave \(3\) has the highest wave speed as well as the maximum transverse string speed. |
4. | Wave \(2\) has the highest wave speed, while Wave \(3\) has the maximum transverse string speed. |