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प्रश्न
State the energy changes which take place in Electricity is obtained from solar energy.
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उत्तर
Heat energy from the sun is converted into electricity.
संबंधित प्रश्न
Define calorific value of a fuel.
A boy of mass m climbs up a staircase of vertical height h.
(a) What is the work done by the boy against the force of gravity?
(b) What would have been the work done if he uses a lift in climbing the same vertical height?
State the energy changes in the following case while in use:
an electric bulb
State two disadvantages of producing electricity from solar energy.
How much electric power is generated in India using the wing energy?
What kind of energy is possessed in a situation when?
A fish moving in the water.
A ball of mass 200 g falls from a height of 5 m. What will be its kinetic energy when it just reaches the ground? (g = 9.8 m s−2)
Obtain an expression for the kinetic energy of a body of mass m moving with a velocity v?
Unit of calorific value of a substance is ____________.
