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] $
