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14. Sources of Energy
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Q112 of 141 Page 14

Draw the two common designs of solar cookers.

   Box type solar heater and Spherical type solar heater

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All 141 →
110 Explain wind power, the principle behind wind mill and its uses. 111 (a) What is a solar water heater? 
(b) Mention one advantage and one disadvantage of harnessing solar energy.
113 What is the meaning for gobar? 1

Thermal power plants are set up near coal or oil fields. Give reason.

Questions · 141
14. Sources of Energy
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