SSC CHSL 12 Oct 2020 Shift 2 Paper

The speed of sound in water is $1480\mathrm{m}∕\sec$. It is also interesting to know that the speed may vary between 1450 to $1498\mathrm{m}∕\sec$ in distilled water whereas the speed in seawater is $1531\mathrm{m}∕\sec$ when the temperature is between $20°\mathrm{C}$ to $25°\mathrm{C}$.