frequency of a photon emitted due to transition of electron of a cerrain element from `L to K `shell is found to be `4.2 xx 10^(18) Hz` using moseley 's law, find the atomic number of the element , given that the Rydberg's constant R = 1.1 xx 10^(7) m^(-1)`

Find the wavelength of H_(alpha) line given the value of Rydberg constant, R=1.1xx10^7m^-1 .

Characteristic X-rays of frequency 4.2xx10^18 Hz are produced when transitions from L-shell to K-shell take place in a certain target material. Use Mosley's law to determine the atomic number of the target material. Given Rydberg constant R =1.1xx10^7 m^(-1) .

Characteristic X-rays of frequency 4.2xx10^18 Hz are produced when transitions from L-shell to K-shell take place in a certain target material. Use Mosley's law to determine the atomic number of the target material. Given Rydberg constant R =1.1xx10^7 m^(-1) .

Characteristic X-rays of frequency 4.2xx10^18 Hz are produced when transitions from L-shell to K-shell take place in a cartain target meterial. Use Mosley's law to determine the atoic number of the target matderial. Given Rydberg constant R =1.1xx10^7 m^(-1) .

Characteristic X-rays of frequency 4.2xx10^18 Hz are produced when transitions from L-shell to K-shell take place in a cartain target meterial. Use Mosley's law to determine the atoic number of the target matderial. Given Rydberg constant R =1.1xx10^7 m^(-1) .

Calculate the longest wavelength of the Paschen series spectrum. (Rydberg constant = 1.97 xx 10^7 xx 10^7 m^-1)

The wave length of first member of Balmer series of a hydrogen atom is nearly (The value of Rydberg constant R = 1.08 xx 10^(7)m^(-1) )