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Choose the correct alternatives. (i) A...

Choose the correct alternatives.
(i) Acceleration due to gravity increases/decreases with increasing altitude.
(ii) Acceleration due to gravity increases/decreases with increasing depth (assume the earth to be a sphere of uniform density.
(iii) Acceleration due to gravity is independent of the mass of the earth/mass of the body.
(iv)The formula `-GMm(1/r_2-1/r_1)` is more/less accurate than the formula mg `(r_2-r_1)` for the difference of potential energy between two points `r_2` and `r_1` distance away from the centre of the earth.

A

`10`

B

`15`

C

`17`

D

`12`

Text Solution

Verified by Experts

The correct Answer is:
B
`(13.6(2)^(2)[1/((1)^(2))-1/((2)^(2))])/(13.6(2)^(2)[1/((3)^(2))-1/((4)^(2))])=15`
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