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JEE Main Solutions –Structure of Atom – 2018 (Online and Offline Papers)

JEE Main 2013-2017 Solutions are available on the COACHENGG APP

Q22 (JEE Main 2018 Online 1): Ejection of the photoelectron from metal in the photoelectric effect experiment can by stopped by applying 0.5 V when the radiation of 250 nm is used. The work function of the metal is :
(1) 4 eV (2) 5.5 eV (3) 4.5 eV (4) 5 eV

Q23 (JEE Main 2018 Online 2): The de-Broglie’s wavelength of electron present in first Bohr orbit of ‘H’ atom is :
(1) 0.529 Å (2) 2π × 0.529 Å (3) 0.529/2π Å (4) 4 × 0.529 Å

Q24 (JEE Main 2018 Online 3): Which of the following statements is false ?
(1) Splitting of spectral lines in electrical field is called Stark effect.
(2) Frequency of emitted radiation from a black body goes from a lower wavelength to higher wavelength as the temperature increases.
(3) Photon has momentum as well as wavelength.
(4) Rydberg constant has unit of energy.

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12 Comments

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  1. COACHengg 3 years ago

    For JEE Main 2013-2017 Solutions of the chapter STRUCTURE OF ATOM , Download our android app "COACHENGG" from google playstore or from the link given below: https://play.google.com/store/apps/details?id=com.rdnc.coachengg
    All our content is organized there subject wise and Chapterwise along with assignments, and doubt discussion forum and you can access it for a small monthly subscription fee.

  2. Avesh Avesh 3 years ago

    nice

  3. BIHARI zone 3 years ago

    NYC vedio sir
    Aise hi bano

  4. prateek nanda 3 years ago

    sir website nhi khul raha

  5. S s 3 years ago

    mst video sir

  6. Enjoy Study 3 years ago

    We need more vedios of jee main from u sir ..👍 keep it up 👍👍👍👍…👌

  7. Imran Alvi 3 years ago

    Thanku guru ji Vry Vry thank you 👍

  8. Om Parghale 3 years ago

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    please follow this quora link for all important jee channels.

  9. Sai Krishna 3 years ago

    sir can u please upload jee mains solutions of ionic equilibrium.i would love to see your take on that topic and also about 100 friends in my school are requesting for it so pls sir can u make a video on the solutions of that topic plsss?

  10. education video 3 years ago

    Sir please upload concepts related to JUNCTION DIODE of semiconductor chapter,🙏🙏

  11. Nikhil Choudhary 3 years ago

    Sir jee advance ka bhi solve krna

  12. Nikhil Choudhary 3 years ago

    Thnks sir

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