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The hydrogen electron de-exites from its...

The hydrogen electron de-exites from its 3rd excited state. W hich are tru e and false statem ents for it. Assign T for true and F for the false. (i) It emits the radiation giving the lines in the Lyman Balmer and Paschen series. (ii) It emits radiation of only UV and visible regions and not infrared region. (iii) It em its the ra d ia tio n of sm allest wavelength giving the line in Lyman series. (iv) It will emit the radiation of the highest frequency giving line in Pfund series

A

TFTF

B

FTFT

C

TTFF

D

FFTT

Text Solution

Verified by Experts

The correct Answer is:
A
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Knowledge Check

  • The wavelength of the first line of Lyman series is lambda . The wavelength of the first line in Paschen series is _________

    A
    `108//7`
    B
    `28//5`
    C
    `7//108`
    D
    `5//27`

  • Which one of the following statem ents is incorrect?

    A
    rolling fricition is smaller than sliding friction
    B
    limiting value of static friction is directly proportional to normal reactions
    C
    frictional force oppose the relative motion
    D
    coefficient of sliding friction has dimensions of length

  • The ratio of wavelength of the last line of Balmer series and the last line of Lyman series is ....

    A
    `1:1`
    B
    `4:1`
    C
    `1:2`
    D
    2

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