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प्रश्न
Solar energy is a non depleting energy. Justify.
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उत्तर
- Solar energy is the only viable fuel source of non – depleting nature for, Sun provides a free and renewable source of energy.
- It is a renewable type of energy without endangering the environment.
- It is the potential source to replace fossil fuel in order to meet the needs of the world. With the advancements in science and technology, solar energy has become more affordable, and it can overcome the energy crisis.
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संबंधित प्रश्न
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.
In order to make an efficient solar cooker, the cover of the cooker box should be made of:
Name two devices which can be utilised for the cooking of food so as to save fuel.
Observe the connections of cells shown in the following images.
i. Which connection will give maximum potential difference?
ii. Give one advantage and one disadvantage of this energy.
What are the major utilizers of solar energy in the world?
Make a table based on forms of energy and corresponding devices:
| Forms of Energy | Devices | |
| a. | Electric | _________ |
| b. | Mechanical | Sewing machine, Bicycle |
| c. | Thermal | __________ |
| d. | _________ | Solar cooker, Solar heater |
A silicon solar cell of dimension 1 sq.cm. generates __________ potential difference.
Solar reflectors are important, why?
Give scientific reason.
Hydropower, solar energy and wind energy are called renewable energy.
What is the disadvantage of solar energy?
