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प्रश्न
Give one disadvantage of using a solar cell.
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उत्तर
One disadvantage of solar cell is listed below:
i. The initial cost of a solar panel is sufficiently high.
संबंधित प्रश्न
What name is given to the heat energy obtained from hot rocks inside the earth?
State two disadvantages of geothermal energy.
Name the type of energy (kinetic or potential) possessed by the following:
A stone at rest on the top of a building.
Name the type of energy (kinetic or potential) possessed by the following:
A compressed spring.
State the energy transformation on the following:
Electricity is obtained from wind energy.
Give three examples of bodies possessing kinetic energy.
State the energy changes which take place when:
A stone projected vertically upwards, returns back to the thrower.
Show that in case of a body falling freely under gravity, total mechanical energy remains conserved (neglect air resistance).
What is meant by energy?
