JEE Main 2022 Physics question
Water falls from a 40 m high dam at the rate of kg per hour. Fifty percentage of gravitational potential energy can be converted into electrical energy. Using this hydro electric energy number of 100 W lamps, that can be lit, is : (Take g = 10 )
Answer: (2)
Solution
The gravitational potential energy released per second is mgh/t = (
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