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Two vessels made of different materials ...

Two vessels made of different materials are identical in all respects. The same quantity of Ice filled in them gets melted in 27 min. and 45 min. when placed in same surroundings. If thermal conductivity of material of 1st vessel is `180" wm"^(-1)k^(-1)`, then Thermal conductivity of material of second vessel will be

A

`108" Wm"^(-1)K^(-1)`

B

`90" Wm"^(-1)K^(-1)`

C

`300" Wm"^(-1)K^(-1)`

D

`120" Wm"^(-1)K^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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