The angle of elevation of jet plane from a point \( \mathrm{A} \) o...

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The angle of elevation of jet plane from a point \( \mathrm{A} \) on the ground is \( 60^{\circ} \) After a flight of 20 seconds at the speed of
\( \mathrm{P} \) \( 432 \mathrm{~km} / \mathrm{hr} \), the angle of elevation changes to \( 30^{\circ} \). If the jet

W) plane is flying at a constant height, then it's height is:
[JEE Mains-2021 (Febuary)]
(a) \( 3600 \sqrt{3} \mathrm{~m} \)
(b) \( 1200 \sqrt{3} \mathrm{~m} \)
(c) \( 1800 \sqrt{3} \mathrm{~m} \)
(d) \( 2400 \sqrt{3} \mathrm{~m} \)
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