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प्रश्न
State one important advantage and disadvantage each of using nuclear energy for producing electricity.
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उत्तर
Advantage: A very small amount of nuclear fuel (such as uranium-235) can produce a tremendous amount of energy.
Disadvantage: The waste obtained from nuclear plants causes environmental
pollution.
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संबंधित प्रश्न
Can a body possess energy even when it is not in motion ? Explain your answer with an example.
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
Give one relevant example for the following transformation of energy :
Chemical energy to light energy.
A light mass and a heavy mass have equal momentum. Which will have more kinetic energy?
(Hint : Kinetic energy K = P2/2m where P is the momentum.)
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 do you understand by the kinetic energy of the body?
What kind of energy is possessed in a situation when?
A cocked up spring of air gun.
What kind of energy is possessed in a situation when?
A stone, in a stretched catapult.
State the energy changes which take place when:
Food is digested by animals.
A body of mass m falls from a height h1 to a height h2, above the ground (h1 > h2). What is the loss of potential energy?
