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Bohrs Atomic Model

Bohrs Atomic Model Scientist Neils Bohr gave some corrections to Rutherford's atomic model in 1913. This corrected model is called the Bohr's atomic model. The main postulates of this model are - a) The electron moves around the nucleus in a circular motion, about an axis. This circular motion is called an energy level or orbit. They are also known as the shell or permanent orbit or principal energy level. Electrons do not absorb or emit any energy when they revolve these fixed orbits. If we express the permanent orbit as n, then n = 1, 2, 3, 4, etc.  In other words, if n = 1, the principal energy level is K,  when n = 2, L is the principal energy level,  when n = 3, M is the principal energy level,  when n = 4, N is the principal energy level, etc. b) According to Bohr's model, the angular momentum of an electron in an energy level is mvr =  nh / 2𝜋 . Here, m = the mass of the electron (9.11×10 -31  kg) r = the radius of the orbit that the electron follows v = the veloc

Current Electricity

Physics

Chapter - 11: Current Electricity

👉 All Chapter Contents 👈 


  • 11.1 Electric Current
  • 11.2 Relationship between Potential Difference and Electricity
  • 11.3 Electric Power
  • 11.4 Electric Supply
  • 11.5 Safe Use of Electricity
  • 11.6 Design of Circuit in Residence


Question Bank

11.1 Electric Current


11.2 Relationship between Potential Difference and Electricity


11.3 Electric Power


11.4 Electric Supply


11.5 Safe Use of Electricity


11.6 Design of Circuit in Residence




Secondary Physics


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