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Day 343: JEE Mains Physics

5 questions. Try each one first, then open its answer.

  1. Question 1

    Nuclei. Asked once: 27 Jan 2024 (same type asked 5 times) See all 5 of this type

    97
    The atomic mass of  6C12\ _{6}C^{12} is 12.000000u12.000000u and that of  6C13\ _{6}C^{13} is 13.003354u13.003354u. The required energy to remove a neutron from  6C13\ _{6}C^{13}, if mass of neutron is 1.008665u1.008665u, will be :

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  2. Question 2

    Atoms. Asked once: 27 Jun 2022 (same type asked 5 times) See all 5 of this type

    24
    A beam of monochromatic light is used to excite the electron in Li++Li^{+ +}from the first orbit to the third orbit. The wavelength of monochromatic light is found to be x×10−10 mx \times10^{- 10}\text{ }m. The value of xx is

  3. Question 3

    Dual Nature of Radiation and Matter. Asked once: 6 Apr 2024 (same type asked 5 times) See all 5 of this type

    103
    When UV light of wavelength 300 nm300\text{ }nm is incident on the metal surface having work function 2.13eV2.13eV, electron emission takes place. The stopping potential is : (Given hc =1240eVnm= 1240eVnm )

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  4. Question 4

    Electromagnetic Waves. Asked once: 1 Feb 2024 (same type asked 5 times) See all 5 of this type

    8
    A parallel plate capacitor has a capacitance C=200pFC = 200pF. It is connected to 230 V230\text{ }V ac supply with an angular frequency 300rad/s300rad/s. The rms value of conduction current in the circuit and displacement current in the capacitor respectively are:

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  5. Question 5

    Wave Optics. Asked once: 26 Jul 2022 (same type asked 5 times) See all 5 of this type

    5
    In young's double slit experiment, the fringe width is 12 mm12\text{ }mm. If the entire arrangement is placed in water of refractive index 43\frac{4}{3}, then the fringe width becomes (in mmmm )

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