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प्रश्न
Can you tell?
Describe one natural chain of transformation of energy.
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उत्तर
One natural chain of energy transformation is photosynthesis. Solar energy is converted into light energy, which plants use to produce chemical energy (glucose). This chemical energy is stored in plants and transferred through the food chain, powering various life processes.
संबंधित प्रश्न
Define calorific value of a fuel.
What is the source of heat contained in geothermal energy?
Give one relevant example for the following transformation of energy:
Electrical energy to heat energy.
State two characteristic which a source of energy must have.
What is the main source of energy for earth?
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).
What happens to the K.E. when
(i) the mass of the body is doubled at a constant velocity and
(ii) the velocity of the body is doubled at constant mass?
Give one example when:
Potential energy changes to electric energy.
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