Consider the following statements about sound passing through a gas.
Statement I: | The pressure of the gas at a point oscillates in time. |
Statement II: | The position of a small layer of the gas oscillates in time. |
1. | Both Statement I and Statement II are correct. |
2. | Statement I is correct and Statement II is incorrect. |
3. | Statement I is incorrect and Statement II is correct. |
4. | Both Statement I and Statement II are incorrect. |
When we clap our hands, the sound produced is best described by:
(here \(p\) denotes the change in pressure from the equilibrium value)
1. \(p = p_0 \sin(kx – ωt)\)
2. \(p = p_0 \sin kx\cos ωt\)
3. \(p = p_0 \cos kx \sin ωt\)
4. \(p = \sum p_{0n} \sin(k_nx – ω_nt)\)