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BITSAT 2020
MCQ (Single Correct Answer)
+3
-1
A bird is sitting on the top of a vertical pole 20 m high and its elevation from a point O on the ground is 45$$^\circ$$. If flies off horizontally straight way from the point O. After one second, the elevation of the bird from O is reduced to 30$$^\circ$$, then the speed (in m/s) of the bird is
Questions Asked from Properties of Triangles (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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