Question:hard

A person standing on an open ground hears the sound of a jet aeroplane, coming from north at an angle $60^\circ$ with ground level. But he finds the aeroplane right vertically above his position. If $\upsilon$ is the speed of sound, speed of the plane is :

Updated On: Apr 3, 2026
  • $\frac{2\upsilon}{\sqrt{3}}$
  • $\upsilon$
  • $\frac{\upsilon}{2}$
  • $\frac{\sqrt{3}}{2}\upsilon$
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The Correct Option is C

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