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Blue light can eject electrons from a ph...

Blue light can eject electrons from a photosenstive surface while orange light can not. Will violet and red light eject electrons from the same surfac?

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To determine whether violet and red light can eject electrons from a photosensitive surface, we need to analyze the situation based on the properties of light and the photoelectric effect. ### Step-by-Step Solution: 1. **Understanding the Photoelectric Effect**: - The photoelectric effect occurs when light of sufficient frequency strikes a photosensitive surface, causing the emission of electrons. The frequency of the incident light must be greater than or equal to a certain threshold frequency (ν₀) specific to the material. 2. **Identifying the Light Frequencies**: ...
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Green light ejects photoelectrons from a given photosenstive surface where as yellow light does not. What will happen in case of violet and red light? Give reason for your answer.

Blue light can cause photo electric emission from a metal, but yellow light cannot. If red light Is incident on the metal,

Knowledge Check

  • Electrons are ejected from a metallic surface when incident light has certain minimum

    A
    wavelength
    B
    frequency
    C
    amplitude
    D
    number of photons

  • A metallic surface ejects electrons when hit by green light but none when hit by yellow light . Will the electrons be ejected if the same surface is hit by red light

    A
    yes
    B
    no
    C
    yes, if the red beam is sufficiently intense
    D
    yes , if the red beam is allowed to fall for sufficient duration

  • When yellow light is incident over a metal surface no electrons are emitted while green light can emit electrons if red light is incident over the surface then

    A
    no electrons are emitted
    B
    more electronds are emitted
    C
    electrons of higher energy are emitted
    D
    electrons of lower energy are emitted

    • Similar Questions

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    Electrons are emitted from a photosensitive surface when it is illuminated by green light but electron emission does not take place by yellow light. Will the electrons be emitted when the surface is illuminated by (i) red light, and (ii) blue light ?

    A metallic surface ejects electrons when exposed to green light of intensity I but not when exposed to yellow light of intensity I. It is possible to eject electrons from the same surface by (i) yellow light of some intensity which is more than I (ii) green light of any intensity (iii) red light of any intensity (iv) violet light of any intensity

    Assertion : In photoelectron emission the velocity of electron ejected from near the surface is larger than that coming from interior of metal. Reaon : The velocity of ejected electron will be zero.

    Electron emission from a metallic surface by application of light is known as

    When orange light falls on a photo sensitive surface the photocurrent begins to flow. The velocity of emitted electrons will be more whwn surface is hit by

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