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If K(1) and K(2) are maximum kinetic ene...

If `K_(1) and K_(2)` are maximum kinetic energies of photoelectrons emitted when light of wavelength `lambda_(1) and lambda_(2)` respectively are incident on a metallic surface. If `lambda_(1)=3lambda_(2)` then

A

`K_(1)gt ((K_(2))/(3))`

B

`K_(1) lt ((K_(2))/(3))`

C

`K_(1)=3K_(2)`

D

`K_(2)=3K_(1)`

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • If K_(1) and K_(2) are maximum kinetic energies of photoelectrons emitted when light of wavelength lambda_(2) and lambda_(1) respectively are incident on a metallic surface. If lambda_(1)=3lambda_(2) then

    A
    `K_(1)gt((K_(2))/3)`
    B
    `K_(1)lt((K_(2))/3)`
    C
    `K_(1)=3K_(2)`
    D
    `K_(2)=3K_(1)`

  • If K_(1) and K_2 are the maximum kinetic energies of photo electrons emitted when lights of wavelength lambda_(1) and lambda_(2) respectively are incident on a metallic surface and lambda_(1) = 3lambda_(2) . Then

    A
    `K_(1) gt K_(2)//3`
    B
    `K_(1) lt K_(2)//3`
    C
    `K_(1) = 3K_(2)`
    D
    `K_(2) = 3K_(1)`

  • Let K_(1) be the maximum kinetic energy of photoelectrons emitted by a light of wavelength lambda_(1) and K_(2) corresponding to lambda_( 2). If lambda_(1) = 2lambda_(2) , then

    A
    `2K_(1) = K_(2)`
    B
    `K_(1) = 2K_(2)`
    C
    `K_(1) lt (K_(2))/(2)`
    D
    `K_(1) gt 2K_(2)`

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