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Light of frequency v=1.5v(0) (where v(0)...

Light of frequency `v=1.5v_(0)` (where `v_(0)=`threshold frequency) is incident on a photosensitive material and photoelectric current is I. if the frequency of incident light is halved and the intensity of light is doubled then the photoelectric current becomes_____.

Text Solution

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Zero. [No photoelectric emission is possible if `v lt v_(0)`].
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Knowledge Check

  • Light of frequency 1.5 times the htreshold frequency is incident on a photosensitive material. What will be the photoelevtric current if the frequency is halved and intensity is doubled?

    A
    Four times
    B
    One - fourth
    C
    Zero
    D
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    B
    half of its initial value
    C
    one fourth the initial value
    D
    three fourth the initial value

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    C
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    D
    becomes four times

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