What is the number of spectral line in a hydrogen spectrum ?
Calculate the highest frequency of the emitted photon in the Paschen series of spectral lines of the hydrogen atom.
Which of the following transition in He^(+) ion will give rise to a spectral line which has the same wavelength as some spectral line in the hydrogen atom ?
Each hydrogen atom is excited by giving 10.2eV. The maximum number of spectral lines in the emission is equal to
Hydrogen atom in ground state is excited by a monochromatic radiation of lambda = 975 Å . Number of spectral lines in the resulting spectrum emitted will be
Electromagnetic waves of wavelenglth 1242 Å are indicdent on a metal of work funcation 2eV . The target metal is connected to a 5 volt cell, as shown. The electrons pass through hole A into a gas of hydrogen atoms in their groynd stte. Find the number of spectral lines emitted when hydrogen atoms come back to their froynd states after gaving veen excited by the electrons, Assume all excitations in H-atoms from ground state only ( hc = 12420 eVÅ )
