Q117 / 160 · JIPMER 2004 · Physics

Amount of work which can be obtained from $200$ cal heat, will be

A
280 J
B
800 J
C
420 J
Correct answer
D
840 J

Solution

Amount of work done is given by $W=200 \mathrm{cal}=200 \times 4.2 \mathrm{~J}=840 \mathrm{~J}$

Hence, the correct answer is option: 'D'.

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