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
Draw a neat diagram of thermos flask - Home Work Help - Learn CBSE Forum
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Explain with a diagram how hot remains hot and cold objects remain cold in a thermos flask object
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How is a metal thermos made?
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Explain the design of a thermos flask.
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Draw a labelled diagram of a thermos flask Describe its working
