Question

At what altitude above the surface of the earth is the value of 'g' equal to the value of 'g' for a mine 10 km below the surface of the earth?​

Answer 1

Answer:

Same changes in value of

′

g

′

can be observe at a depth

′

x

′

and height

′

2x

′

given that the depth

′

d

′

=x=10km

∴ the same charge can be observed at a height 2x=20km

Hence,

the correct option is A

Explanation:

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