The sound of distant horses can br heard by applying the ear to the ground whereas it is inaudible if the ear is held a little distance above the ground. Explain.

If you place your ear close to an iron railing which is tapped some distance away, you hear the sound twice. Explain why?

If you place your ear close to an iron railing which is tapped some distance away, you hear the sound twice. Explain why?

An aeroplane is going towrds east at a speed of 510 kmh^-1 at a height of2000 m. At a certain instant, the sound o theh plane heard by a ground obserger appears to come from a point vertically above him. Where is the plane at this instant? Speed of sound in air =340 ms^-1

An aeroplane is going towrds east at a speed of 510 kmh^-1 at a height of2000 m. At a certain instant, the sound o theh plane heard by a ground obserger appears to come from a point vertically above him. Where is the plane at this instant? Speed of sound in air =340 ms^-1

An aero plane is going towards east at a speed of 510 kmh^-1 at a height of 2000 m. At a certain instant, the sound o the plane heard by a ground observer appears to come from a point vertically above him. Where is the plane at this instant? Speed of sound in air =340 ms^-1

The sound of a thunder is heard 6 s after the lightning flash from a cloud at an angle of 60^(@) to the horizontal. Calculate the height of cloud above the ground. The velocity of sound in air is 340 m/s.