The speed of sound in air is independent of its:

Which of the following cannot be polarised?

An earthquake generates both transverse $S$ and longitudinal $P$ waves in the earth with speeds $4.5 \,km/s$ and $8.0 \,km/s$, respectively. $A$ seismograph records that the first $P$-wave arrives $3.5 \,min$ earlier than the first $S$-wave. From the seismograph, the epicentre of the earthquake is located at a distance of: (in $\,km$)

What is called compression or condensation? Which type of changes in density and pressure take place in it?

At what temperature does the velocity of sound in air increase by $10\%$ compared to its velocity at $0^{\circ}C$ (in $^{\circ}C$)?

When an aeroplane attains a speed higher than the velocity of sound in air,a loud bang is heard. This is because