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Two block of masses 1 kg 2 are connected...

Two block of masses 1 kg 2 are connected by a metal wire going over a smooth pulley. The breaking stress of metal is `40/(3pi) xx10^(6)Mm^(-2)` . What should be the minimum radius of wire used if it should not break?`(g=10ms^-2)`

A

0.5mm

B

2 mm

C

1mm

D

1.5mm

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The correct Answer is:
C
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