Home
Class 12
PHYSICS
Write down Einstein's photoelectric equa...

Write down Einstein's photoelectric equation and mention the symbols used.
The photoelectric threshold wavelength for a certain metal is 400 nm. Find the maximum kinetic energy of the emitted electrons from the metal surface by ultraviolet light of wavelength 200 nm. Given, `h= 6.63 xx 10^(-34) J.s`

Answer

Step by step text solution for Write down Einstein's photoelectric equation and mention the symbols used. The photoelectric threshold wavelength for a certain metal is 400 nm. Find the maximum kinetic energy of the emitted electrons from the metal surface by ultraviolet light of wavelength 200 nm. Given, h= 6.63 xx 10^(-34) J.s by PHYSICS experts to help you in doubts & scoring excellent marks in Class 12 exams.

Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise CBSE Scanner|29 Videos

  • QUANTUM THEORY

    CHHAYA PUBLICATION|Exercise Entrance Corner (Integer answer type)|9 Videos

  • OPTICAL INSTRUMENTS

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|8 Videos

  • QUESTION PAPER OF NEET 2017

    CHHAYA PUBLICATION|Exercise QUESTION PAPERS OF (NEET) (2017)|39 Videos

Similar Questions

Explore conceptually related problems

Write down Einstein's photoelectric equation and mention the symbols used. The photoelectric threshold wavelength for a certain metal as 400mm. Find the maximum kinetic enrgy of the emitted electrons from the metal surface by ultraviolet light of wavelength 200nm. Given h=6.63xx10^34

Photoelectric threshold wavelength for a metal is 3800 Å . Find the maximum kinetic energy of emitted photoelectron, when ultraviolet radiation of wave length 2000Å is incident on the metal surface. Planck's constant, h = 6.62 xx 10^(-34) J.s

Knowledge Check

  • The number of photons emitted per second by a 60 W source of monochromatic light of wavelength 663 nm is (h= 6.63xx10^(-34) Js)

    A
    `4xx10^(-20)`
    B
    `1.54xx10^20`
    C
    `3xx10^(-20)`
    D
    `1xx10^(-20)`

    • Similar Questions

    Explore conceptually related problems

    Calculate the maximum kinetic energy of electrons emitted from a photosensitive surface of work function 3.2eV, for the incident radiation of wavelength 300nm.

    Estimate the kinetic energy of electron that hit the target in a Coolidge tube and produce X-ray of wavelength 1 Å . Given h=6.62xx10^(-34)J *s,c=3xx10^(8)m*s^(-1) .

    How many photons of light with wavelength 400 nm can provide 1 J energy? [h=6.626xx10^(-34)J*s]

    Find the number of photons emitted per second by a source of power 25W. Assume, wavelength of emitted light = 6000Å. h = 6.62 xx 10^(-34)J.s

    For any metal the photoelectric threshold wavelength is 3800overset@A . An ultraviolet wave of wavelength 2000overset@A is incident on the metal then what will be- the maxinum kinetic energy of the photoelectrons. [given— h = 6.62 xx 10^(-34)J.S]

    For photoelectric emission, threshold wavelength of a metal is 2460 Å . If ultraviolet light of wavelength 1810 Å be incident on the metal, what will be the maximum kinetic energy of the emitted electrons? [Planck's constant = 6.62xx10^(-34) J.s , velocity of light in veccuum = 3xx10^(8) m.s^(-1) ]

    A photon of energy 8eV is incident on a metal plate with threshold frequency 1.6 xx 10^(15) Hz. The maximum kinetic energy of the emitted photo electrons is (given h= 6 xx 10^(-34) Js )

    Home
    Profile