1.

The approximate value of quantum number n for the circularorbit of hydrogen 0.000 1 mm in diameter is(a) 1000 (b) 60 (c) 10000 (d) 3149.61

Answer»

Bohr radius R is given by R = 0.059n²/z nm

=> D = 0.0001 mm = 1×10-⁴ mm = 1000A° => R = 500A°

=> 500 = 0.529n²/1=> n² = 500/0.529=> n = 30.71

so, option D



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