What is the number of standing waves in 4th orbit of hydrogen atom?

Answer: 4

Number of waves = circumference of electron orbit / wave length

                                = 2πr/l

                             l = h/mv

Angular momentum (v) in 4th orbit = nh/2π

                                                                  = 4h/2π

Number of waves = 2π/h* 4h/2π =4                                                        

 

 

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