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A wire elongastes by 1.0 mm when a load ...

A wire elongastes by 1.0 mm when a load W ils hung from it. If this wire goes over a pulley and two weights W each are hung at the two ends the elongation of the wire will be

A

`0.5m`

B

`1.0mm`

C

`2.0mm`

D

`4.0mm`

Text Solution

Verified by Experts

The correct Answer is:
B
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Knowledge Check

  • A wire elongates by l mm when a load W is hanged from it. If the wire goes over a pulley and two weights W each are hung at the two ends, the elongation of the wire will be (in mm)

    A
    (a) l
    B
    (b) 2l
    C
    (c) zero
    D
    (d) `l/2`

  • A wire elongates by l mm when a load W is hanged from it. It the wire goes over a pulley and two weights W each are hung at the two ends, the elongation of the wire (in mm) will be

    A
    `(l)/(2)`
    B
    l
    C
    2l
    D
    zero

  • A wire elongates by l units, when a load w is suspended from it . If the wirew gets over a pulley ( equally on both the sides ) and two weights w each are hung at the two ends, the elongation of wire (in units ) will be

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