Two glass tumblers made of the same material have been stuck together (one inside the other). They can be separated by :
A
pouring hot water in the inner tumbler
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B
placing the tumblers in cold water
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C
placing the outer tumbler in hot water
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D
hammering them vigorously
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Solution
The correct option is C placing the outer tumbler in hot water When the tumbler are stuck we put them in hot water so that the second tumbler (that is outside) expands due to the heat and the first tumbler (that is inside) comes out easily.