In Joule's experiment, a mass of 0.8 kg was allowed to fal through a height of 75 cm.
Channel: Doubtnut
Date: 2021-11-02

In Joule's experiment, a mass of 0.8 kg was allowed to fal through a height of 75 cm. The process was repeated 150 times and rise of temperature of `2.1^(@)C` was observed. If the water equivalent of the calorimeter and its contents is 100g, find the value of J.