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There is formation of layer of snow x cm...

There is formation of layer of snow x cm thick on water, when the temperature of air is `-theta^(@)C` (less than freezing point). The thickness of layer increases from x to y in the time r, then the value of t is given by

A

`((x+y)(x-y)rhoL)/(2ktheta)`

B

`((x-y)rhoL)/(2ktheta)`

C

`((x+y)(x-y)rhoL)/(ktheta)`

D

`((x-y)rhoLk)/(2theta)`

Text Solution

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The correct Answer is:
A
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