Q: At what height from the surface of the earth the gravitational force will be reduced by 10% (if the radius of earth is 6370 km)? पृथ्वी की सतह से कितनी ऊँचाई पर गुरूत्वीय बल में 10% की गिरावट होगी (यदि पृथ्वी की त्रिज्या 6370किमी. हो)?
A.
750km
B.
650km
C.
450km
D.
344km
Correct Answer:
Option D -
Explanations:
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