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A black surface absorbs more heat radiat...

A black surface absorbs more heat radiations as compared to a white surface under identical conditions. List two solar devices which make use of this property in their design.

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Solar cooker, solar panel.
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OSWAAL PUBLICATION-SOURCES OF ENERGY-TOPIC - 2 (ALTERNATIVE OR NON - CONVENTIONAL SOURCES OF ENERGY)(VERY SHORT ANSWER TYPE QUESTIONS)
  1. Name the part of a biogas plant where reactions take place in the abse...

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  2. Name any one material used to make a solar cell and also mention the r...

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  3. A black surface absorbs more heat radiations as compared to a white su...

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  4. List two forms of energy in which solar energy manifests itself in oce...

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  5. Name any two elements that are used in fabricating solar cells.

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  6. List any two advantages of using wind energy.

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  7. List two indirect ways of using solar energy.

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  8. Mention two different ways of harnessing energy from ocean.

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  9. What should be the minimum wind speed to maintain the required speed o...

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  10. Why is the outer surface of a solar cooker blackened?

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  11. List any two limitations in harnessing wind energy.

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  12. Why is a solar cooker painted black from outside ?

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  13. Mention the main purpose of using a plane mirror in solar cookers.

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  14. Mention the purpose of blackening the interior of a solar cooker.

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  15. Mention any one reason due to which most of the thermal power plants a...

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  16. State the transformation of energy taking place in a solar cell panel.

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  17. Compare the energy produced during fission of a uranium atom with the ...

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  18. State the necessary conditions to operate an ocean thermal energy conv...

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  19. Windmill works with the energy of the blowing wind. Then, how is the s...

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  20. Why are black surfaces, and not the white surfaces, used for making so...

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