Question
If the value of ‘g’ at a height h above the surface of the earth is the same as at a depth x below it, then (both x and h being much smaller than the radius of the earth)
Answer: Option B
:
B
The value of g at the height h from the surface of earth
g′=g(1−2hR)
The value of g at depth x below the surface of earth
g′=g(1−xR)
These two are given equal, hence g′=g(1−2hR)=g′=g(1−xR)
On solving, we get x=2h
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:
B
The value of g at the height h from the surface of earth
g′=g(1−2hR)
The value of g at depth x below the surface of earth
g′=g(1−xR)
These two are given equal, hence g′=g(1−2hR)=g′=g(1−xR)
On solving, we get x=2h
Was this answer helpful ?
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