Gravitation Question 40

Question: At what height from the ground will the value of ?g? be the same as that in 10 km deep mine below the surface of earth[RPET 1999]

Options:

A) 20 km

B) 10 km

C) 15 km

D) 5 km

Show Answer

Answer:

Correct Answer: A

Solution:

Same change in the value of g can be observed at a depth x and height 2x given

$ [d=x=10km$

$\therefore h=2x=20km] $



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