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A solid brass sphere is subjected to a p...

A solid brass sphere is subjected to a pressure of `1.0xx10^(5)` Pa due to the Earth's atmosphere. On Venus the pressure due to the atmosphere is `9.0xx10^(6)` Pa. By what fraction `Delta r//r_(0)` (including the algebraic sign) does the radius of the sphere change when it is exposed to the atmosphere on Venus ? Assume that the change in radius is very small relative to the initial radius.

A

`-4.4xx10^(-5)`

B

`-4.4xx10^(-6)`

C

`+5.4xx10^(-5)`

D

`-6.2xx10^(-4)`

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The correct Answer is:
A
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