question_answer

Hydrogen atoms in a sample are excited to \[n=5\]  states and it is found that photons of all possible wavelengths are present in emission spectra. The minimum number of hydrogen atoms in the sample would be

A)  5                                

B)  6                  

C)  10                              

D)  infinite

Correct Answer: B

Solution :

 The wavelengths present in emission spectra are shown in the figure below \[(\Delta \phi ={{\phi }_{2}}-{{\phi }_{1}})\] one atom\[T=\frac{2\pi }{\omega }\] one atom  Remaining all by individual atoms.