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19. When a drop of liquid splits into a number of droplets, un
जब द्रव की एक बूंद कई नन्हीं बूंदों में बंट जाती है, तो :
(1) area increases
(2) volume increases
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आयतन बढ़ता है।
(3) energy is liberated
(4) energy does not change
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ANSWER: (1) Area increases.
EXPLANATION: Two individual liquid drops have a greater surface area than that of a single drop formed after their coalescence. ...
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