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Two streams of photons, possessing energies equal to five and ten times the work function of metal are incident on the metal surface successively. The ratio of maximum velocities of the photoelectron emitted, in the two cases respectively, will be

Option 1 -

 1 : 2

Option 2 -

1 : 3

Option 3 -

2 : 3

Option 4 -

3 : 2

0 2 Views | Posted 2 months ago
Asked by Shiksha User

  • 1 Answer

  • V

    Answered by

    Vishal Baghel | Contributor-Level 10

    2 months ago
    Correct Option - 3


    Detailed Solution:

     E1=5? −? =4? =12mv12

    E2=10? −? =12mV22

    ⇒V1V2=8? m18? m=818=49=23

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