Advertisements
Advertisements
प्रश्न
Give scientific reason.
Hydropower, solar energy and wind energy are called renewable energy.
उत्तर
- The sources of energy which are being produced continuously in nature and are inexhaustible, i.e., they are always available for use are called renewable sources of energy.
- Hydropower, solar energy, wind energy are produced from energy sources like water, sunlight and wind respectively that are produced continuously in nature and will not get depleted.
Thus, hydropower, solar energy and wind energy are called renewable energy.
APPEARS IN
संबंधित प्रश्न
How much solar energy will be received by 1 m2 area in one hour if the solar constant be 1.4 kW/m2?
Fill in the following blank with suitable word:
A solar cell converts ................ energy into ................ energy.
Name that part of a box-type solar cooler which allow the sun's heat rays to enter the box but does not allow inside heat to go out.
The radiations present in sunlight which make a solar cooker work are:
(a) visible light rays
(b) ultraviolet rays
(c) comic rays
(d) infrared rays
In order to make an efficient solar cooker, the cover of the cooker box should be made of:
A solar cooker may not cook food if
(a) the solar cooker is not placed in the shade
(b) the glass sheet cover of solar cooker is not closed
(c) a convex mirror reflector is not used
Solar cells are used to provide the electric current to charge the batteries of a car driven by an electric motor. Describe the energy changes which take place.
Name one source of energy which is not derived from solar energy directly of indirectly.
Name two devices which can be utilised for the cooking of food so as to save fuel.
The power produced from solar cells is a DC.
Solar reflectors are important, why?
Complete the table.
| Limitations of Solar energy | Limitations of Wind energy |
Solar energy is a non depleting energy. Justify.
What is the disadvantage of solar energy?
Choose the correct statement.
______ is not harmful to the environment.
The installed capacity of the Kamuthi solar power project is ______ MW.
