The temperature gradient in a rod of 0.5 m long is `80^(@)C//m`. If the temperature of hotter end of the rod is `30^(@)C`, then the temperature of the colder end is

The temperature gradient in a rod of 0.5 m length is 80^(@)C//m . It the temperature of hotter end of the rod is 30^(@)C , then the temperature of the cooler end is

The temperature gradient in a rod of 1m long is '100^@' C/m if the temperature of hotter end is '30^@' C, then the temperature of colder end is

The temperature gradient in a rod 0.5 m long is 40^@C per metre. The temperature of the hotter end is 30^@C . What is the temperature of its colder end?

The ends of a thin bar are maintained at different temperatures. The temperature of the cooler end is 11^(@)C , while the temperature at a point 0.13m from the cooler end is 23^(@)C and the temperature of the warmer end is 48^(@)C . Assuming that heat flows only along the length of the bar ( the sides are insulated), find the length of the bar.

Four identical rods of same material are joined end to end to form a square. If the temperature difference between the ends of a diagonal is 100^(@)C , then the temperature difference between the ends of other diagonal will be

Two rods of same dimensions, but made of different materials are joined end to end to end with their free end being maintained at 100^(@)C and 0^(@)C respectively. The temperature of the junction is 70^(@)C . Then the temperature of the junction if the rods are inerchanged will be equal to T^(@)C Find T :

On heating one end of a rod the temperature of the whole rod will be uniform when .

Two rods having thermal conductivity in the ratio of 5 : 3 having equal lengths and equal cross-sectional area are joined by face to face. If the temperature of the free end of the first rod is 100^(@)C and free end of the second rod is 20^(@)C . Then temperature of the junction is

In the figure-II temperature of inner surface of cylinder is 0^@C and temperature of outer surface is 100^@C . In figure-I temperature of one end of cylinder is 100^@C while another end is at 0^@C (dT)/(dr) =temperature gradient in radial direction at steady state in figure -II (dT)/(dl) =temperature gradient in linear direction at steady state in figure -I . both cylinder are made of uniform material

One end A of a metallic rod of length 10 cm is inserted in a furnace whose temperature is 827^(@)C . The curved surface of the rod is insulated. The room temperature is 27^(@)C . When the steady state is attained, the temperature of the other end B ofthe rod is 702^(@)C . Find the thermal conductivity ofthe metal. Stefan's constant = 5.67 xx 10^(-8)W m^(-2) K^(-4) .