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Vivek01 Kumar

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  1. Asked: January 15, 2025In: Class 12 Physics

    What is the main conclusion of a-particle scattering experiment?

    Vivek01 Kumar
    Added an answer on January 18, 2025 at 9:08 am

    The main conclusion of the α-particle scattering experiment, conducted by Ernest Rutherford, is that atoms consist of a tiny, dense, positively charged nucleus at the center, containing most of the atom's mass, with electrons orbiting in the surrounding empty space. This led to the development of thRead more

    The main conclusion of the α-particle scattering experiment, conducted by Ernest Rutherford, is that atoms consist of a tiny, dense, positively charged nucleus at the center, containing most of the atom’s mass, with electrons orbiting in the surrounding empty space. This led to the development of the nuclear model of the atom.

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    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/

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  2. Asked: January 16, 2025In: Class 12 Physics

    When is H line of the Balmer series in the emission spectrum of hydrogen atom obtained?

    Vivek01 Kumar
    Added an answer on January 18, 2025 at 7:29 am

    The H line of the Balmer series in the hydrogen atom’s emission spectrum is obtained when an electron falls from the n = 3 energy level to the n=2 level, emitting light in the visible region. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/

    The H line of the Balmer series in the hydrogen atom’s emission spectrum is obtained when an electron falls from the n = 3 energy level to the n=2 level, emitting light in the visible region.

    For more visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/

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  3. Asked: January 15, 2025In: Class 12 Physics

    Define the distance of closest approach.

    Vivek01 Kumar
    Added an answer on January 18, 2025 at 7:28 am

    The distance of closest approach is the minimum distance between the nucleus and an incoming particle, such as an alpha particle, during a collision. At this point, the particle's kinetic energy is completely converted into electrostatic potential energy due to the nucleus's repulsion. For more visiRead more

    The distance of closest approach is the minimum distance between the nucleus and an incoming particle, such as an alpha particle, during a collision. At this point, the particle’s kinetic energy is completely converted into electrostatic potential energy due to the nucleus’s repulsion.

    For more visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/

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  4. Asked: January 8, 2025In: Class 12 Physics

    What is the minimum distance, in terms of focal length of lens, between an object and its real image formed by a convex lens?

    Vivek01 Kumar
    Added an answer on January 18, 2025 at 7:28 am

    The minimum distance between an object and its real image formed by a convex lens is twice the focal length. This occurs when the object is placed at twice the focal length from the lens. For more visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/

    The minimum distance between an object and its real image formed by a convex lens is twice the focal length. This occurs when the object is placed at twice the focal length from the lens.

    For more visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-9/

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  5. Asked: January 17, 2025In: Class 12 Physics

    When an electron falls from a higher energy to a lower energy level, the difference in the energies appears in the form of electromagnetic radiation. Why cannot it be emitted as other forms of energy?

    Vivek01 Kumar
    Added an answer on January 18, 2025 at 7:00 am

    The energy difference during an electron's transition is emitted as electromagnetic radiation because it arises from changes in the electron's energy levels, governed by quantum mechanics. Other forms of energy, like kinetic or thermal energy, do not align with the quantized nature of electronic traRead more

    The energy difference during an electron’s transition is emitted as electromagnetic radiation because it arises from changes in the electron’s energy levels, governed by quantum mechanics. Other forms of energy, like kinetic or thermal energy, do not align with the quantized nature of electronic transitions.

    For more visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/physics/chapter-12/

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