A) \[{{R}_{1}}+{{R}_{2}}=R\]
B) \[{{R}_{1}}+{{R}_{2}}>R\]
C) \[{{R}_{1}}+{{R}_{2}}<R\]
D) None of these
Correct Answer: A
Solution :
[a] According to the given condition. |
\[2\pi R=2\pi {{R}_{1}}+2\pi {{R}_{2}}\Rightarrow \,\,R={{R}_{1}}+{{R}_{2}}\] |
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