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Explain why a bullet fired against a gla...

Explain why a bullet fired against a glass windowpane makes a hole in it but the glass pane is not cracked.

Text Solution

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Intially, the entire glass is in the state of rest. When a bullet strikes the glass pane, the part of the glass pane which comes in contact with the bullet immediately shares the large velocity of the bullet and files away making a hole. The remaining part of the glass, remains at rest and is not cracked.
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Knowledge Check

  • Acid used for making permanent markings on the glass surface is.

    A
    `HNO_3`
    B
    (B) HF
    C
    (C) `HIO_3`
    D
    (D) `H_2SO_4`

  • Polymer used in bullet proof glass is

    A
    lexan
    B
    PMMA
    C
    nomex
    D
    kevlar

  • Polymer used in bullet proof glass is

    A
    PMMA
    B
    Lexan
    C
    Nomex
    D
    Kevlar.

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    Paheli saw the moon through a glass window at 8:00 p.m. She marked the position of the moon on the glass pane. She got up at 4 a.m. in the morning. Will the moon be visible at the same position?

    A clean hole is made in a glass window pane when it is struck by a bullet fired from a gun. Whereas, the same window pane will be broken to pieces when struck by a stone of a similar size. Explain this phenomenon quoting the relevant principles.

    Polymer used in bullet proof glass is

    Polymer used in bullet proof glass is

    Polymer used in bullet proof glass is

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