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Statement-1: Photoelectric effect is eas...

Statement-1: Photoelectric effect is easily pronounced by caesium metal.
Statement-2: Photoelectric effect is easily pronounced by the metals having high ionization energy.

A

Statement-1 is true, statement-2 is true, statement-2 is a correct explanation for statement-1

B

Statement-1 is true, statement-2 is true, statement-2 is not a correct explanation for statement-1

C

Statement-1 is true, statement-2 is false.

D

Statement-1 is false, statement-2 is true.

Text Solution

Verified by Experts

The correct Answer is:
C
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Photoelectric Effect - 2

Statement-1: In Photoelectric effect , electrons absorbing the photon can not be a free electron. Statement -2: A free electron can't absorb a photon completely

Knowledge Check

  • Assertion : Photoelectric effect is most readily shown by ceasium metal. Reason : Photon have easiest access to the surface of ceasium metal .

    A
    if both assertion and reason are correct and reason is correct explanation for assertion .
    B
    If both assertion and reason are correct but reason in not correct explanation for assertion.
    C
    If assertion is correct but reason is incorrect.
    D
    If both assertion and reason are incorrect.

  • Select correct statement(s) about photoelectric effect.

    A
    If green light ejects photoelectron from metal M then red light can never eject photoelectrons from metal M.
    B
    If green light ejects photoelectron from metal M then red light may not eject photoelectrons even if it has high intensity for metal M.
    C
    If green light ejects photoelectron from metal M with low photocurrent then more photo intense blue light must have high photocurrent for metal M.
    D
    If green light ejects photoelectron then blue light must eject photoelectron with more energy for metal M.

  • Choose the correct statement regarding the photoelectric effect ?

    A
    Photocurrent reverses its direction when the applied voltage is reduced further below the stopping potential
    B
    The photocurrent varies linearly with the applied voltage
    C
    The stopping potential remains unaffected by the intensity of the incident light.
    D
    Saturation currect remains unaffected by the intensity of incident light.

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    Mark the incorect statement regarding the photoelectric effect.

    In photoelectric effect on metals, an increase in the frequency of incident radiation increases:

    Photoelectric effect is described as the ejection of electrons from the surface of a metal when:

    With respect to electromegnetic theory of light, the photoelectric effect is best explained by statement

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