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There is a hole in metal disc.What happe...

There is a hole in metal disc.What happens to the size of the metal disc if the metal disc is heated?

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Knowledge Check

  • Major function of intervertebral discs is to

    A
    Prevent injury
    B
    Absorb shock
    C
    String the vertebrae
    D
    Prevent hyperextension

  • A uniform circular disc of radius a is taken. A circular portion of radius b has been removed from it as shown in the figure. If the centre of hole is at a distance from the centre of the disc, the distance x_(2) of the centre of mass of the remaining part from the initial centre of mass O is given by

    A
    `(pib^(2))/((a^(2)-b^(2)))`
    B
    `(-cb^(2))/((a^(2)-b^(2)))`
    C
    `(pic^(2))/((a^(2)-b^(2)))`
    D
    `(pia^(2))/((c^(2)-b^(2)))`

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