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A particle hanging from a spring stretch...

A particle hanging from a spring stretches it by 1 cm at Earth's surface. How much will the same particle stretch the spring at a place 800 km above the Earth's surface ? Radius of Earth=6400 km:

A

a) 5.12 cm

B

b) 0.79 cm

C

c) 0.125 cm

D

d) 8 cm

Text Solution

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The correct Answer is:
B
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