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प्रश्न
Which of the following is used in solar cooker to harvest the solar energy?
a) Solar panels
b) Silicon cell
c) Mirrors
d) Glass lid
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उत्तर
c) Mirrors
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संबंधित प्रश्न
Why is the copper tube of a solar water heater painted black from outside?
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
How much solar energy will be received by 1 m2 area in one hour if the solar constant be 1.4 kW/m2?
Explain why, a plane mirror reflector is used in a box-type solar cooker.
What is solar constant? What is the value of solar constant?
With the help of a labelled diagram, explain the construction and working of a solar cooker.
Solar cells are made of:
(a) conductors
(b) insulators
(c) semi-conductors
(d) super-conductors
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
Which of the following solar radiations pass through the atmosphere of Earth: X -rays, ultraviolet rays, visible light rays or infrared radiation?
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.
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 |
Power available from solar cells : DC : : power require to run domestic equipments : _________
The power produced from solar cells is a DC.
Distinguish between the following.
Electricity generation from solar cells and solar thermal power generation
Solar energy is a non depleting energy. Justify.
Solar energy is a renewable energy. How?
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
Kamuthi solar power project is situated in ______ district in Tamil Nadu.
Observe the figure and label it properly:
- What is the figure related to?
- Why are reflectors used?
- Draw a flow chart showing different stages in such a process.
- How is the process used to generate electricity?
- What other method can be used to generate electricity using the same energy source?
