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Problem 7: Calculate the radius of the innermost orbital level of hydrogen atom?

Solution

Formula

Here,                     n = 1                      h = 6.63 × 10-34 J s             m = mass of proton = 9.11 × 10-31 kg

                                e is charge of electron = 1.67 × 10-19 C     k = Coulomb law constant = 9 × 109 N m/C2

Hence put the values in the formula,

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