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The linear momentum of the particle is 6.63 kg m/s. Calculate the de Broglie wavelength. - Physics

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प्रश्न

The linear momentum of the particle is 6.63 kg m/s. Calculate the de Broglie wavelength.

बेरीज
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उत्तर

`lambda = "h"/"p"`

= `(6.63 xx 10^-34)/6.63 = 10^-34` m

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Bohr’s Atomic Model
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पाठ 15: Structure of Atoms and Nuclei - Very Short Answer

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एससीईआरटी महाराष्ट्र Physics [English] 12 Standard HSC
पाठ 15 Structure of Atoms and Nuclei
Very Short Answer | Q 9

संबंधित प्रश्‍न

Answer in brief.

State the postulates of Bohr’s atomic model.


The radii of Bohr orbit are directly proportional to ______ 


State Bohr's second postulate for the atomic model. Express it in its mathematical form.  


State any two limitations of Bohr’s model for the hydrogen atoms. 


Calculate the wavelength for the first three lines in the Paschen series. 
(Given RH =1.097 ×107 m-1)  


State the postulates of Bohr’s atomic model. Hence show the energy of electrons varies inversely to the square of the principal quantum number. 


Obtain an expression for wavenumber, when an electron jumps from a higher energy orbit to a lower energy orbit. Hence show that the shortest wavelength for the Balmar series is 4/RH.  


Which of the following series of transitions in the spectrum of hydrogen atom falls in ultraviolet region?


Using Bohr's model, the orbital period of electron in hydrogen atom in nth orbit is (ε0 = permittivity of free space, h = Planck's constant, m = mass of electron and e = electronic charge)


The ratio of the velocity of the electron in the first orbit to that in the second orbit is ____________.


When the electron in hydrogen atom jumps from fourth Bohr orbit to second Bohr orbit, one gets the ______.


For a certain atom when the system moves from 2E level to E, a photon of wavelength `lambda` is emitted. The wavelength of photon produced during its transition from `(4"E")/3` level to E is ____________.


If the ionisation potential of helium atom is 24.6 volt, the energy required to ionise it will be ____________.


The total energy of an electron in an atom in an orbit is -3.4 eV. Its kinetic and potential energies are, respectively ______.


The binding energy of an electron in nth orbit of the hydrogen atom is given by `"E"_"n" = 13.6/"n"^2 "eV."` The energy required to knock an electron from the second orbit in eV will be ____________.


If m is mass of electron, v its velocity, r the radius of stationary circular orbit around a nucleus with charge Ze, then from Bohr's second postulate, the kinetic energy `"K.E." = 1/2"mv"^2` of the electron in C.G.S. system is 2 equal to ____________.


The time of revolution of an electron around a nucleus of charge Ze in nth Bohr orbit is directly proportional to ____________.


When an electron in hydrogen atom is excited from its 3rd to 5th stationary orbit, tbe change in angular momentum of electron is (Planck's constant: h = 6.62 x 10-34 Js) ____________.


Angular speed of an electron in the ground state of hydrogen atom is 4 × 1016 rad/s. What is its angular speed in 4th orbit?


When an electron in hydrogen atom jumps from third excited state to the ground state, the de-Broglie wavelength associated with the electron becomes ____________.


Using Bohr's quantization condition, what is the rotational energy in the second orbit for a diatomic molecule. (I = moment of inertia of diatomic molecule, h = Planck's constant)


If Vn and Vp are orbital velocities in nth and pth orbit respectively, then the ratio Vp: Vn is ______.


The third line of the Balmer series, in the emission spectrum of the hydrogen atom, is due to the transition from the ______.


Which of the following series of transition of hydrogen spectrum falls in visible region?


The triply ionised beryllium (Be+++) has the same electron orbital radius as that of the ground state of the hydrogen atom. The energy state (n) of triply ionised beryllium is ______.

(Z for beryllium = 4)


Let Ee and Ep represent the kinetic energy of electron and photon, respectively. If the de-Broglie wavelength λp of a photon is twice the de-Broglie wavelength λe of an electron, then `E_p/E_e` is ______.

(speed of electron = `c/100`, c = velocity of light)


What is the origin of spectral lines? Obtain an expression for the wave number of a line in hydrogen spectrum.


Find the momentum of the electron having de Broglie wavelength of 0.5 A.


Compute the shortest and the longest wavelength in the Lyman series of hydrogen atom.


Find the ratio of radius of 1st Bohr orbit to that of 4th Bohr orbit.


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