A sphere of brass released in a long liq...

A sphere of brass released in a long liquid column attains a terminal speed `v_(0)`. If the terminal speed is attained by a sphere of marble of the same radius and released in the same liquid is `nv_(0)`, then the value of `n` will be (Given: The specific gravities of brass, marble and liquid are `8.5, 2.5` and `0.8`, respectively)

`5/17`

`17/77`

`1/31`

`17/5`

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The correct Answer is:

For the same radius, terminal velocity is proportional to the density difference.

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