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प्रश्न
State two disadvantages of producing electricity from solar energy.
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उत्तर
Disadvantages of using solar panels:
1. The initial cost of a solar panel is sufficiently high.
2. The efficiency of conversion of solar energy to electricity is low.
3. A solar panel produces d.c. electricity which cannot be directly used for many household purposes.
संबंधित प्रश्न
Calculate the change in the Kinetic energy of a moving body if its velocity is reduced to 1/3rd of the initial velocity.
Name the process used for producing electricity using nuclear energy.
Name the two groups in which various sources of energy are classified. State on what basis are they classified.
How is wind energy used to produce electricity?
Two bodies A and B of masses m and M (M ≫ m) have same kinetic energy. Which body will have more momentum?
What kind of energy is possessed in a situation when?
An electron spinning around the nucleus.
State the energy changes which take place when:
A toy car spring is wound and car is made to run on level floor.
State the energy changes which take place when:
Electricity obtained from nuclear energy.
Give one example when:
Light energy changes to chemical energy.
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
