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प्रश्न
Why is the solar cooker box painted black from inside?
उत्तर
A solar cooker box is painted back from the inside so that light is not reflected and the maximum absorption takes place.
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संबंधित प्रश्न
Explain why, a plane mirror reflector is used in a box-type solar cooker.
What is a solar cell? Draw the labelled diagram of a solar cell.
Name the semi-conductor material which is usually used for making solar cells.
Name two devices which can be utilised for the cooking of food so as to save fuel.
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
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 |
The potential difference available from a solar cell depends on its area.
Solar energy is a non depleting energy. Justify.
Solar energy is a renewable energy. How?
______ is considered as a great source of energy.
