A particle falls towards earth from infinity. It?s velocity on reachin – McqOptions

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1.	A particle falls towards earth from infinity. It?s velocity on reaching the earth would be [Orissa JEE 2003]
A.	Infinity
B.	\[\sqrt{2gR}\]
C.	\[2\sqrt{gR}\]
D.	Zero
Answer» C. \[2\sqrt{gR}\]

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