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प्रश्न
Solar energy is a non depleting energy. Justify.
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
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What type of reflector is used in a box-type solar cooker?
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What is solar constant? What is the value of solar constant?
The value of solar constant is:
(a) 1.4 kWh
(b) 1.4 kW/m
(c) 1.4 kW/m2
(d) 1.4 kW/m3
Re-write the statement by selecting the appropriate option.
The solar lamp uses the ................... energy.
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 a current of about ___________.
The power produced from solar cells is a DC.
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
