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Question
What is a solar cell? Draw the labelled diagram of a solar cell.
Solution
A solar cell is an electrical device that converts light energy into electrical energy.
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RELATED QUESTIONS
Fill in the following blank with suitable word:
A solar cell converts ................ energy into ................ energy.
Write the uses of solar cells.
Why is the solar cooker box painted black from inside?
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
Two statements are given - one labelled Assertion (A) and the other labelled Reason (R).
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 |
A silicon solar cell of dimension 1 sq.cm. generates a current of about ___________.
State the importance of inverters.
Which one of the following forms of energy leads to least environmental pollution in the process of its harnessing and utilisation?
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
