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A uniform copper rod of 50 cm length is...

A uniform copper rod of 50 cm length is insulated on the sides and has its ends exposed ot ice and steam respectively. If there is a layer of water 1 mm thick at each end, the temperature gradient `("in ".^(@)Cm^(-1))` in the bar is (assume that the thermal conductivity of copper is `"400 W m"^(-1)K^(-1)` and water is `"0.4 W m"^(-1)K^(-1)`

A

60

B

40

C

50

D

65

Text Solution

Verified by Experts

The correct Answer is:
B
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