Two bodies have the same heat capacity. If they are combined to form a single composite body, the equivalent specific heat of this composite body is . s1 and s2 are there individual specific heat
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a
2s1s2s1-s2
b
s1s2s1+s2
c
s1+s22
d
2s1s2s1+s2
answer is D.
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Detailed Solution
Let the two bodies have masses m1,m2 and specific heatss1 and s2 m1s=m2s2 orm1m2=s2s1 Let s = specific heat of the composite body. m1s1+m2s2 =m1+m2s s=2m1s1m1+m2=2m1s1m1+m1s1s2=2s1s2s1+s2