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Which of the following metal requires ra...

Which of the following metal requires radiation of highest frequency to cause emission of electrons?

A

Mg

B

Ca

C

K

D

Na

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • Which of the following metal requires radiation of the lowest wavelength to cause emission of electrons?

    A
    `Na`
    B
    `K`
    C
    `Mg`
    D
    `Ca`

  • Electromagnetic radiation of highest frequency is

    A
    Infrared radiations
    B
    Visible radiation
    C
    Radio waves
    D
    `gamma`-rays

  • Which of the following transitions give the highest frequency for electron emission?

    A
    `n_(1)=1` to `n_(2)=2`
    B
    `n_(1)=2` to `n_(2)=1`
    C
    `n_(1)=2` to `n_(2)=5`
    D
    `n_(1)=5` to `n_(2)=2`
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