Question

The temperature of the water at the bottom of a large waterfall is higher than that of the water at the top, because

• A. the falling water absorbs heat from the sun
• B. K.E. of the falling water converted into heat
• C. the water at the bottom has greater P.E.
• D. rocks on the bed of the river given out heat

Answer 1

The correct option is B K.E. of the falling water converted into heat

When water falls from a height, its potential energy is converted into kinetic energy which is lost in the form of heat when it comes to rest and hence after reaching to the bottom of waterfall results in its high temperature.