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प्रश्न
State two advantages of using wind energy for generating electricity.
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उत्तर
Advantages of using the wind energy:
1. It does not cause any kind of pollution.
2. It is an everlasting source.
संबंधित प्रश्न
Name the type of energy (kinetic or potential) possessed by the following:
A moving cricket ball.
State four ways for the judicious use of energy.
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
State the energy changes which take place when:
Photographic film is exposed to sunlight.
A body of mass 0.2 kg falls from a height of 10 m to a height of 6 m above the ground. Find the loss in potential energy taking place in the body. [g = 10ms−2]
A body of mass 50 kg has a momentum of 3000 kg−1 ms. Calculate:
(j) the kinetic energy of the body.
(ii) the velocity of the body.
A body of mass m is taken from a height h to 2h. What is the increase in its potential energy?
The solar cooker is an application of the ______ energy of the sun, while solar cells, solar lamps are applications of the ______ energy of the sun.
