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JEE Main Physics Class 11 Motion in a Straight Line and Plane Part 1 Questions

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

[12 Jan. 2019 II]

√3
2
v
2v
√3
v
v
2

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