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प्रश्न
Give one example when:
Light energy changes to chemical energy.
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उत्तर
During photosynthesis, light energy changes to chemical energy.
संबंधित प्रश्न
What is the source of heat contained in geothermal energy?
Select the correct alternatives
The energy stored in an electric cell is
State the energy changes in the following case while in use:
an electric toaster.
A hydroelectric power station takes its water from a lake whose water level is 50 m above the turbine. Assuming an overall efficiency of 40%, calculate the mass of water which must flow through the turbine each second to produce power output of 1 MW. (Take g = 10 m s−2).
Calculate the decrease in the kinetic energy of a moving body if its velocity reduces to half of the initial velocity.
Give one example when:
Kinetic energy changes to heat energy.
Nuclear fission is
