NCERT Class ... hydrogen atom initially at the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of the photon. 6. (a) Using Bohr’s model ...

For Class 12 students, exams will commence on ... Derive the expression for the radius of the nth orbit of the hydrogen atom using Bohr’s model. Question 3: State and derive the expression ...

Everyone at that time imagined the atom as a ... the electrons in his model lined up with the regular patterns (spectral series) of light emitted by real hydrogen atoms. Bohr's theory that ...