1. | Wavelength of the component waves is \(10~\text{cm}.\) |
2. | The separation between a node and the nearest antinode is \(2.5~\text{cm}.\) |
3. | Frequency of the component wave is \(0.25~\text{Hz}\). |
4. | All of these |
1. | \(10^{4}~\text{m/s}\) |
2. | \(1~\text{m/s}\) |
3. | \(10^{-4}~\text{m/s}\) |
4. | Not derivable from the above data |
The length of the string of a musical instrument is \(90\) cm and has a fundamental frequency of \(120\) Hz. Where should it be pressed to produce a fundamental frequency of \(180\) Hz?
1. | \(75\) cm | 2. | \(60\) cm |
3. | \(45\) cm | 4. | \(80\) cm |
1. | \(100~\text{Hz}\) | 2. | \(200~\text{Hz}\) |
3. | \(50~\text{Hz}\) | 4. | \(400~\text{Hz}\) |
1. | \(100~\text{cm}\) | 2. | \(150~\text{cm}\) |
3. | \(200~\text{cm}\) | 4. | \(66.7~\text{cm}\) |