MCQOPTIONS
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| 1. |
The escape velocity of a sphere of mass m from earth having mass M and radius R is given by [NCERT 1981, 84; CBSE PMT 1999] |
| A. | \[\sqrt{\frac{2GM}{R}}\] |
| B. | \[2\sqrt{\frac{GM}{R}}\] |
| C. | \[\sqrt{\frac{2GMm}{R}}\] |
| D. | \[\sqrt{\frac{GM}{R}}\] |
| Answer» B. \[2\sqrt{\frac{GM}{R}}\] | |