In the Joule experiment, a mass of 20 kg falls through 1.5m at a constant velocity to stir the water
Channel: Doubtnut
Date: 2020-07-26

In the Joule experiment, a mass of 20 kg falls through 1.5m at a constant velocity to stir the water in a calorimeter. If the calorimeter has a water equivalent of 2 g and contains 12 g of water, what is f, the mechanical equivalent of heat, for a temperature rise of `5.0^@C`?