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प्रश्न
Select the correct alternative
The vacuum kept in between the walls of a thermos flask reduces the heat transfer by
पर्याय
conduction only
convection only
radiation only
conduction and convection
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उत्तर
conduction and convection
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संबंधित प्रश्न
Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.

Fill in the blank
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