A thermos flask is designed to prevent the contents of the flask from losing heat. Which of the following statements concerning the design of thermos flasks is incorrect? A. The stopper helps
Vacuum flasks use a vacuum to keep out heat loss, if so there is near vacuum between the sun and earth, then how is the heat from the sun transmitted to earth? -
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In a thermos flask, what prevents heat loss(a) radiation(b) heat losses by conduction and convection are largely prevented
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Describe the construction of a thermo flask with the help of a neat diagram and label it.
