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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 the device which converts sunlight into electricity.
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.
Write the uses of solar cells.
The part of box-type solar cooker which is responsible for producing greenhouse effect is:
(a) plane mirror reflector
(b) black coating inside the box
(c) glass sheet cover
(d) utensils placed in the cooker box
Assertion (A): A solar cooker cooks the meal due to the greenhouse effect.
Reason (R): The plane mirror is responsible for producing the greenhouse effect.
The potential difference available from a solar cell depends on its area.
Solar reflectors are important, why?
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
