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Question

A light rod of length 2 m is suspended from the ceiling horizontally by means of two vertical wires of equal length tied to its ends. One of the wires is made of steel and is of cross section 0.1 cm2. A weight is suspended from a certain point of the rod such that equal stress are produced in both the wires. Which of the following are correct?

A
The ratio of tension in the steel and brass wires is 0.5
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B
The load is suspended at a distance of 400/3cm from the steel wire
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C
Both (a) and (b) are correct
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D
Neither (a) nor (b) are correct
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Solution

The correct options are
A Both (a) and (b) are correct
B The ratio of tension in the steel and brass wires is 0.5
C The load is suspended at a distance of 400/3cm from the steel wire
T10.1=T20.2 or T1T2=12=0.5
Further, T1x=T2(2x)
or T1T2=2xx
Hence, 2xx=0.5=12 or 42x=x
or, x=43m=4003cm.
1557113_157967_ans_ac33ed3dd960499089bff9d021ee29a3.jpg

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