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Two closed containers of same dimensions...

Two closed containers of same dimensions made of different materials are completely filled with ice. The ice in the first container takes 20 minutes and that in the second container takes 10 minutes, respectively for complete melting. The ratio of the thermal conductivities of the materials of the two containers is _______

A

`1: 2 `

B

`2: 1 `

C

`3 : 1`

D

`1: 3 `

Text Solution

Verified by Experts

The correct Answer is:
A
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