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Three rods AB, BC and BD of same length...

Three rods `AB, BC` and `BD` of same length l and cross-sectionsl area `A` are arranged as shown . The end `D` is immersed in ice whose mass is `440 gm` Heat is being supplied at constant rate of `200cal//sec` from the end Time in which whole ice will melt (Latent heat of fusion of ice is `80cal//gm`
.

A

`(40)/(3)` min

B

`(176)/(3)` sec

C

`(20)/(3)` min

D

None of these

Text Solution

Verified by Experts

`1(200+400)=440xx80`
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