In a progressive wave, two particles are separated by $10\,\text{cm}$. The two graphs illustrate how the displacement $d$ of each particle changes with time $t$. What situation could the two graphs represent?
- Aparticles in a longitudinal wave with a compression and the nearest rarefaction separated by $10\,\text{cm}$
- Bparticles in a longitudinal wave with a compression and the nearest rarefaction separated by $20\,\text{cm}$
- Cparticles in a transverse wave with a peak and the nearest trough separated by $20\,\text{cm}$
- Dparticles in a transverse wave with two adjacent peaks separated by $10\,\text{cm}$