A) 2R
B) \[R(1+\sqrt{2})\]
C) \[R\sqrt{2}\]
D) \[R(\sqrt{2}-1)\]
Correct Answer: B
Solution :
\[{{R}_{\text{net}}}=R+\sqrt{{{R}^{2}}+{{R}^{2}}}=R+\sqrt{2}R=R(\sqrt{2}+1)\]
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