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Three rods are made from the same materi...

Three rods are made from the same material and having the same cross-sectional area and length have been joined as shown in the figure.

The left end and right end are kept `0^@C and 100^@C` , respectively . The temperature of the junction of three rods will be

A

`50^@C`

B

`60^@C`

C

`80^@C`

D

`66.66^@C`

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The correct Answer is:
D
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