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Conductivity of which one is maximum

aluminium
diamond
gold
copper

SI unit of thermal conductivity is

\(jk^{-1}m^{-1}s^{-1}\)
\(jk^{-1}m^{-1}s\)
\(jk^{-1}m^{-1}\)
\(jk^{-1}s^{-1}\)

Quantity of heat conducted through a solid depends on

length of the solid
area of cross-section of solid
difference of the temperature of the two ends of the solid
above all

In which state is the thermal conductivity maximum

solid
liquid
gas
above all

Keeping the material length, difference of temperature of the two ends of a conductor and time of flow of heat unchanged if the radius of the area of cross-section be increased by 4 times the quantity of heat conducted will be

2 times
4 times
16 times
none of these

Physics

Ten Standard

Test your understanding of this lesson Thermal conductivity:-

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