हिंदी

The speed of electron having de Broglie wavelength of 10 -10 m is ______ (me = 9.1 × 10-31 kg, h = 6.63 × 10-34 J-s) - Physics

Advertisements
Advertisements

प्रश्न

The speed of electron having de Broglie wavelength of 10 -10 m is ______ 
(me = 9.1 × 10-31 kg, h = 6.63 × 10-34 J-s) 

विकल्प

  • 7.28 × 106 m/s 

  • 4 × 106 m/s

  • 8 × 105 m/s 

  • 5.25 × 105 m/s 

MCQ
रिक्त स्थान भरें
Advertisements

उत्तर

The speed of electron having de Broglie wavelength of 10 -10 m is 7.28 × 106 m/s.

shaalaa.com
Bohr’s Atomic Model
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 15: Structure of Atoms and Nuclei - MCQ’S

संबंधित प्रश्न

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


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


Calculate the shortest wavelength in the Paschen series if the longest wavelength in the Balmar series is 6563 Ao


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


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


The radius of electron's second stationary orbit in Bohr's atom is R. The radius of the third orbit will be ______


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


For which one of the following, Bohr model is not valid?


In Bohr's model of hydrogen atom, the period of revolution of the electron in any orbit is proportional to ______.


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 ____________.


Which of the following models was successful in explaining the observed hydrogen spectrum?


If the speed of an electron of hydrogen atom in the ground state is 2.2 x 106 m/s, then its speed in the third excited state will be ______.


An electron of mass 'm' is rotating in first Bohr orbit of radius 'r' in hydrogen atom. The orbital acceleration of the electron in first orbit (h = Planck's constant).


In Bohr model, speed of electron in nth orbit of hydrogen atom is ______. (b = Planck's constant, n = principal quantum number, ∈0 is the permittivity of free space, e = electronic charge)


If a charge on the body is 1 nC, then how many electrons are present on the body?


If n is principal quantum number and r is the radius of the orbit in which electron revolves around nucleus, then its kinetic energy is ____________.


An electron makes a transition from an excited state to the ground state of a hydrogen like atom. Out of the following statements which one is correct?


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


The electron of mass 'm' is rotating in first Bohr orbit of radius 'r' in hydrogen atom. The orbital acceleration of the electron in first orbit is ______.

(b =Planck's constant)


What is the mathematical formula for the third postulate of Bohr's atomic model?


The speed of an electron in ground state energy level is 2.6 × 106 ms-1, then its speed in third excited state will be ______.


Show that the angular speed of an electron in the nth Bohr orbit is w = `(πme^4)/(2ε_0^2h^3n^3)` and the corresponding frequency of the revolution of the electron is f = `(me^4)/(4ε_0^2h^3n^3)`.


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


Draw a near labelled energy level diagram for hydrogen atom.

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×