Akanksha has mad.e two paper cups by folding a sheet of paper. She half fills one of the cups with water and keeps the other empty. She puts those two paper cups above the flame carefully. b With reference to the above activity answer the following questions : (a) Which zone of the flame is best for heating ? (b) What happens to the empty paper cup when it is heated ? (c) What happens to the paper cup with water and why ? (d) What wiII be the change in temperature of water ?
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Answer:
(a) the middle layer of heat also know as the inner flame is best for heating.
(b) it burns when it is heated.
(c) The water will start heating gradually.
Explanation:
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