Question

Thermal capacity of a good conductor is determined by


Lee's method or Searle's apparatus

Forbe's method or Lee's method

Searle's apparatus or Forbe's method

None of the above​

Answer 1

Answer:

The extent to which materials conduct heat can be quantified by a parameter known as the thermal conductivity, symbol k. Heat conduction is not only determined by the material, but also by its shape, and by the temperature difference between the two ends.

Answer 2

The correct option is (c) Searle's apparatus or Forbe's method.

1. In Forbe's method, a long bar of metal with a uniform cross segment is warmed at one of its finishes. The whole length of the pole is allowed to remain uncovered to the encompassing air at the surrounding room temperature.
2. Searle's apparatus for assurance of thermal conductivity. It consists of a metallic bar having two holes is known as the distance of partition. The bar is warmed by a flowing stem and next is cooled by circling cold water.
3. Lee's strategy is utilized to gauge the thermal conductivity of a poorly conducting material, like glass, wood, or polymer. This was perhaps the earliest technique used to gauge thermal conductivity that gave solid outcomes and is a consistent state strategy.