A) twice
B) half
C) one- fourth
D) four times
Correct Answer: C
Solution :
Heat, \[H={{i}^{2}}Rt\] ...(i) Where \[r=\frac{R}{2}\] Then, Heat \[H'={{i}^{2}}\frac{R}{2}t\] From Eq. (i) \[H'=\frac{1}{2}H\]
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