The heat energy absorbed by a system in going through a cyclic process shown in figure is

Options

A. `10^(3)pi" Joule"`
B. `-10^(2)pi" Joule"`
C. `10^(2)pi" Joule"`
D. `-10^(7)pi" Joule"`

Answer

A

Explanation

Let velocity of `m_(1)` just after collision is slightly greater than `m_(2)` and is in opposite direction.
`m_(1)v=-m_(1)v_(1)+m_(2)v_(1),e==(2v_(1))/(v)` for limiting condition
`(m_(1))/(m_(2))lt(e)/(2+e)`