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A body of mass M is attached to lower e...

A body of mass M is attached to lower end of a metal wire whose upper and is fixed. The elongation is l. The ratio of loss of gravitational potential energy to the energy stored in the wire is

A

1

B

2

C

`(1)/(2)`

D

`(4)/(3)`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • A body of mass M is attached to the lower end of a metal wire, whose upper end is fixed . The elongation of the wire is l .

    A
    Loss in gravitational potential energy of` M` is `Mgl`
    B
    The elastic potential energy stored in the wire is ` Mgl`
    C
    The elastic potential energy stored in the wire is `1/2 Mgl`
    D
    Heat produced is `1/2 Mgl`

  • For an elastic stretched wire, the ratio of its elastic potential energy and the energy density of the wire is equal to

    A
    stress in the wire
    B
    Young's modulus of the material of the wire
    C
    strain in the wire
    D
    volume of the wire

  • A weight Mg is attached to the free end of a wire suspended from a rigid support. The wire is extended by l. The ratio of the elastic potential energy stored in the stretched wire to the work done by the weight Mg is

    A
    `1 : 1`
    B
    `1 : 2`
    C
    `1 : 3`
    D
    `2 : 1`

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    When a metal wire elongates by hanging a load Mg on it the gravitational potential energy of mass M decrease by Mgl . This energy appears

    when a metal wire elongates by hanging a load Mg on it , the gravitational poyential energy of mass M decreases by Mgl. This energy appears

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