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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
What kind of mirror – concave, convex or plain – would be best suited for use in a solar cooker? Why?
What are the advantages and disadvantages of using a solar cooker? Are there places where solar cookers would have limited utility?
Fill in the following blank with suitable word:
A solar cell converts ................ energy into ................ energy.
What is a solar cell? Draw the labelled diagram of a solar cell.
If the solar constant is 1.4 kW/m2 then solar energy recived by 1m2area in one hour is:
(a) 5040 J
(b) 504.0 kJ
(c) 5040 kJ
(d) 5.04 kJ
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
Name one source of energy which is not derived from solar energy directly of indirectly.
What steps would you suggest to reduce energy consumption?
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.
Distinguish between the following.
Electricity generation from solar cells and solar thermal power generation
