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12th Standard English Medium Physics Subject Electromagnetic Waves Creative 1 Mark Questions with Solution Part - I Question Bank Software Jun-17 , 2021

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12th Standard English Medium Physics Subject Electromagnetic Waves Creative 1 Mark Questions with Solution Part - I

12th Standard English Medium Physics Subject Electromagnetic Waves Creative 1 Mark Questions with Solution Part - I

12th Standard

    Reg.No. :
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Physics

Time : 00:30:00 Hrs
Total Marks : 5
    5 x 1 = 5

  1. The electric and magnetic field of an EM wave are _____________.

    (a)

    in phase and perpendicular to each other

    (b)

    in phase and parallel to each other

    (c)

    in opposite phase and perpendicular to each other

    (d)

    in opposite phase and parallel to each other

  2. Which EM waves are used in medicine to destroy cancer cells?

    (a)

    radio waves

    (b)

    IR

    (c)

    ૪ rays

    (d)

    UV rays

  3. The existence of E.M. waves was confirmed experimentally by __________________.

    (a)

    Hertz

    (b)

    Maxwell

    (c)

    Huygens

    (d)

    Planck

  4. A magnetic field is produced by ____________.

    (a)

    a changing electric field

    (b)

    a moving charge

    (c)

    both of them

    (d)

    none of them

  5. Electromagnetic waves are discovered by _______________.

    (a)

    Hertz

    (b)

    Maxwell

    (c)

    Lenz

    (d)

    Huygens

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