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JEEMAIN and NEET
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Physics
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Class11
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Gravitation
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If a body is to be projected vertically upwards from the surface of the earth to reach a height nR then the velocity with which it is to be projected is
\[(a)\;\sqrt {\frac{2ngR}{n+1}} \quad (b)\;\sqrt {\frac{ngR}{n-1}} \quad (c)\;\sqrt {\frac{2ngR}{n}} \quad (d)\;\sqrt {\frac{2ngR}{n-1}} \]
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