1. This type of saree is named after the Paithan city of Aurangabad Maharashtra state where they are hand woven.

2. They are made of the very finest silk and hence they are the most expensive sarees in India.

3. It is named after the Paithan village in which it is woven. There is zari (gold or silver) work in the saree.

A heat pump is a heat engine working in reverse direction. A refrigerator is basically a heat pump, which is used to pump heat (absorbed from materials at lower temperatures inside the refrigerator) to the surroundings at higher temperatures. The coefficient of performance of a refrigerator is defined as the ratio of heat removed

Why

2

Energy from inside the refrigerator per cycle

w

given per cycle for heat removal,

α

,

Why

2

,

w

,