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Temperature of 100 g of water in a therm...

Temperature of 100 g of water in a thermoflask remains fixed for a pretty long time at `50^(@)C`. An equal mass of sand at `20^(@)C` is poured in the flask and shaken for some time so that the temperature of the mixture is `40^(@)`. Now the experiment is repeated with 100g of a liquid at `50^(@) C` and an equal amount of sand at `20^(@)C` when the temperature of the mixture is found to be `30^(@)C` The specific heat of the liquid `(in KJ//KgxK)` is

A

1.05

B

2.01

C

1.55

D

1.95

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The correct Answer is:
A
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