Question

How many times does the electron go around the first Bohr orbit in one second? 

Solution

Correct option is

The frequency of the electron is given by 

              

                  

                    

                  

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SIMILAR QUESTIONS

Q1

Which energy state of doubly ionized lithium (Li++) has the same energy as that of the ground state of hydrogen? Given Z for lithium = 3.

Q2

The total energy of the electron in the first excited state of hydrogen is –3.4 eV. What is the kinetic energy of the electron in this state?  

Q3

The energy of the electron of hydrogen orbiting in the stationary orbit of radius rn is proportional to

Q4

The energy required to excite a hydrogen atom from n = 1 to n = 2 energy state 10.2 eV. What is the wavelength of the radiation emitter by the atom when it goes back to its ground state?

Q5

The ionisation potential of the hydrogen atom is 13.6 eV. Its energy in n = 2 energy state is

Q6

The innermost orbit of the hydrogen atom has diameter of 1.06 Å. What is the diameter of the tenth orbit? 

Q7

The difference lines in the Lyman series have their wavelengths lying between

Q8

The shortest wavelength in the :Lyman Series is 911.6 Å. Then the longest wavelength in the Lyman’s Series is 

Q9

Which of the following transition in a hydrogen atom emits the photon of lowest frequency?  

Q10

The electron orbits with principal quantum numbers n > 3 were not allowed, the number of possible elements would be