Question

Radius of orbit is equal to R = n² h² / (4π² m K e² Z) or n²52.9 ??

Answer 1

correct value. 0.529×10^-10 m n^2/z. note here ^means raise to power .now when you solve the expression that you write and put values of all constants in it that are h, k, m ,π ,e than you will get that numerical value that I write on the above. the expression is that which you writ in your question

Answer 2

You have to mention which orbits radius you have given