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प्रश्न
State two advantages of producing electricity from solar energy.
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उत्तर
Advantages of using solar panels:
1. They do not cause any pollution in the environment.
2. Running cost of solar panel is almost zero.
3. They last over a long period of time.
4. They do not require any maintenance.
5. They are suitable for remote and inaccessible places where electricity power lines cannot be laid.
संबंधित प्रश्न
Which of the following produces more heat (per unit mass) on burning?
Name the type of energy (kinetic or potential) possessed by the following:
A moving cricket ball.
A ball is made to fall freely from a height. State the kind/ kinds of energy possessed by the ball when it is just in the middle .
Select the renewable and non-renewable sources of energy from the following:
Wood
State two disadvantages of using nuclear energy for producing electricity.
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
State the energy changes which take place when:
Food is digested by animals.
State the energy changes which take place when:
Electricity obtained from nuclear energy.
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.
