A person standing on an open ground hears the sound of a jet aeroplane, coming from north at an angle 60° with ground level. But he finds the aeroplane right vertically above his position. If 'v' is the speed of sound, then speed of the plane is?

A person standing on an open ground hears the sound of a jet aeroplane, coming from north at an angle 60° with ground level. But he finds the aeroplane right vertically above his position. If 'v' is the speed of sound, then speed of the plane is?

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter17: Sound

Section: Chapter Questions

Problem 38P: Porpoises emit sound waves that they use for navigation. If the wavelength of the sound wave emitted...

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Concept explainers

Speed of light

The speed at which the light travels in a vacuum is unbiased for both the source and inertial frame of reference of the observer. This was postulated by the physicist, Albert Einstein, by observing the theory of electromagnetism of Maxwell. Also, there was no evidence for the luminiferous aether, that is, the medium for the propagation of light where the electromagnetic field exists.

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A person standing on an open ground hears
the sound of a jet aeroplane, coming from
north at an angle 60° with ground level. But he
finds the aeroplane right vertically above his
position. If 'v' is the speed of sound, then
speed of the plane is?

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