Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The two rods have thermal conductivities 2k and k and length `l` and `2l` respectively. The system is in steady state - Sarthaks eConnect

The two rods have thermal conductivities 2k and k and length `l` and `2l` respectively. The system is in steady state

`T_(AB)=20^oC`

`T_(AB)=80^oC`

`T_(AB)=60^oC`

`T_(AB)=40^oC`