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Two identical square rods of metal are w...

Two identical square rods of metal are welded end to end as shown in figure (a). Assume that `10` cal of heat flows through thr rod in `2min`. Now the rods are welded as shown in figure (b). The time it would take for `10` cal to flow through the rods now, is

A

`0.75 min`

B

`0.5 min`

C

`1.5 min`

D

`1 min`

Text Solution

Verified by Experts

The correct Answer is:
B
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