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According to Einstein's photoelectric eq...

According to Einstein's photoelectric equation , the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is

A

B

C

D

Text Solution

Verified by Experts

The correct Answer is:
D
(d) : The maximum kinetic energy of photoelectron ejected is given by
`K.E.=hu-phi_(0)=hu-hu_(0)`
where work function depends on the type of material.
If the frequency of incident radiation is greater than `v_(0)` only then the ejection of photoelectrons start. After that as frequency increases kinetic energy also increases.
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Knowledge Check

  • The graph between the energy of photoelectrons E and the wavelength of incident light (lamda ) is

    A
    B
    C
    D

  • According to Einstein's photoelectric equation, the plot of the maximum kinetic energy of the emitted photoelectrons from a metal versus frequency of the incident radiation gives a straight line whose slope

    A
    depends on the nature of metal used
    B
    depends on the intensity or radiation
    C
    depends on both intensity of radiation and the nature of metal used
    D
    is the same for all metals and independent of the instensity or radiation

  • According to Einstein's photoelectric equation (symbols have their usual meaning)

    A
    `hv - phi = (KE)_max`
    B
    `hvgt(KE)_max`
    C
    `phi = hv+ (KE)_max/2`
    D
    `phi = (KE)_max- (hv)/2`
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