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An object is allowed to fall from a height \(R\) above the earth, where \(R\) is the radius of earth. Its velocity when …

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An object is allowed to fall from a height \(R\) above the earth, where \(R\) is the radius of earth. Its velocity when it strikes the earth's surface, ignoring air resistance, will be

[JEE Main 2023, 30 Jan (Shift 2)]

a

\(2 \sqrt{g R}\)

b

\(\sqrt{g R}\)

c

\(\sqrt{\frac{g R}{2}}\)

d

\(\sqrt{2 g R}\)

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