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What is the use of glass bulb in an elec...

What is the use of glass bulb in an electric bulb? Can we use an electric bulb without the glass bulb in space?

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Filament should not be in contact with oxygen.
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Knowledge Check

  • Who invented electric bulb ?

    A
    Einstein
    B
    Thomas Alva Edison
    C
    Charles Babbage
    D
    none of these.
  • An electric bulb converts electrical energy into

    A
    sound energy
    B
    mechanical energy
    C
    nuclear energy
    D
    none of these
  • Glowing of an electric bulb involves

    A
    change of colour
    B
    change in temperature
    C
    physical and reversible change
    D
    all of these
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