A) 1 : 2
B) 1 : 4
C) 2 : 1
D) 4 : 1
Correct Answer: A
Solution :
\[p=\frac{4T}{r}\] Then, \[{{p}_{1}}=\frac{4T}{{{r}_{1}}}\] and \[{{P}_{2}}=\frac{4T}{{{r}_{2}}}\] Hence, \[\frac{{{p}_{1}}}{{{p}_{2}}}=\frac{{{r}_{2}}}{{{r}_{1}}}=\frac{1}{2}\] \[\therefore \] \[{{p}_{1}}:{{p}_{2}}=1:2\]You need to login to perform this action.
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