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Two vessels of different materials are s...

Two vessels of different materials are similar in size in every respect. The same quantity of ice filled in them gets melted in 20 minutes and 35 minutes respectively. The ratio of the thermal conductivities of their materials is

A

`5:6`

B

`6:5`

C

`3:1`

D

`7:4`

Text Solution

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The correct Answer is:
D
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