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Question

The temperature-time variation graphs, as obtained by four students A,B,C and D are as shown. The graph, likely to be correct is that of student
232003_724c4b9db15c4f038bb25cf83ba64755.png

A
A
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B
B
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C
C
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D
D
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Solution

The correct option is C D
According to Newton's law of cooling: dQdt=K(ΔT)
Thus, T Vs t graph must be continuously decreasing curve as shown by student D.

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