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प्रश्न
Complete the following flow chart.
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उत्तर
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संबंधित प्रश्न
What kind of mirror – concave, convex or plain – would be best suited for use in a solar cooker? Why?
What is the range of temperature which can be achieved in a box-type solar cooker in two to three hours?
Fill in the following blank with suitable word:
A solar cell converts ................ energy into ................ energy.
Explain why, a plane mirror reflector is used in a box-type solar cooker.
Write the uses of solar cells.
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
In order to make an efficient solar cooker, the cover of the cooker box should be made of:
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
Solar cells are used to provide the electric current to charge the batteries of a car driven by an electric motor. Describe the energy changes which take place.
What steps would you suggest to reduce energy consumption?
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
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.
What are the major utilizers of solar energy in the world?
Solar photovoltaic cells convert the solar radiation energy directly into ______ energy.
Solar reflectors are important, why?
Solar energy is a non depleting energy. Justify.
Solar energy is a renewable energy. How?
______ is not harmful to the environment.
How can solar energy be harnessed? Mention any two limitations in using solar energy. How are these limitations overcome?
