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NEET UG PHYSICS MCQ: GRAVITATION

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Application +4 | -1

A mass of

3 \times {10^{24}}\,kg

is to be compressed in a sphere in such a way that the escape velocity from the sphere is

9 \times {10^8}\,m/s.

Radius of the sphere should be

\left[ {G = 6.67 \times {{10}^{ - 11}}\,N{m^2}/k{g^2}} \right]

View answer and explanation

Correct option: D

0.49 mm

Option D (0.49 mm) is correct. The radius is calculated using the escape velocity formula.

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