A sound wave has a frenquency 2hz and wave length 40 cm. How long will it take to travel 1.6 km

A sound wave has a frenquency 2hz and wave length 40 cm. How long will

1.	A sound wave has a frenquency 2hz and wave length 40 cm. How long will it take to travel 1.6 km
Answer» V=f× wavelengthV = 2×0.4=0.8m/secSpeed=distance÷time0.8 = 1600÷timeTime = 1600÷0.8 =20sec Frequency=2hzWavelength=40cm=0.40mWe know that speed = wavelength× frequency=0.40×2hz=0.8m/sThe time taken by the wave to travel a distance ,d= 1.6km ist=d/v= 1.6× 1000 m/0.8m=2s