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A body of length 1m having cross section...

A body of length 1m having cross sectional area `0.75m^(2)` conducts heat `6000J//s`. Then find the temperature difference if `K=200" Jm"^(-1)"K"^(-1)`.

A

`20^(@)C`

B

`40^(@)C`

C

`80^(@)C`

D

`100^(@)C`

Text Solution

Verified by Experts

The correct Answer is:
B
Use `d theta//dt=(KADeltaT)/(d)rArr6000=(200xx0.75DeltaT)/(1)`
`rArrDeltaT=(6000)/(200xx0.75)=40^(@)C`
So correct choice is (b).
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