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QAIPM-2000-Ph-3017: NEET 2000 Physics - Class 11 AIPM-2000-Ph-3017 Solution: For a planet having mass equal to mass of the earth but radius…
For a planet having mass equal to mass of the earth but radius is one fourth of radius of the earth. Then escape velocity for this planet will be
Multiple Choice Options
- A 11.2 km/sec
- B 22.4 km/sec
- C 5.6 km/sec
- D 44.8 km/sec.
Step-by-Step Verified Solution
v e a r t h = 2 G M e R e
v p l a n e t = 2 G M p R p = 2 G M e R e / 4 = 8 G M e R e
v p l a n e t v e a r t h = 8 G M e R e _ R e 2 G M e = 2
_ v p l a n e t = 2 _ v e a r t h
= 2 _ 11.2 = 22.4 km/s