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CBSE Class 12 · 2010 · Modern PhysicsVery Short Answer

Write the expression for Bohr's radius in a hydrogen atom.

Answer: $a_{0} = \frac{ε _{0} h ^{2}}{π m e ^{2}} \approx 0.53 \overset{˚}{A}$

Solution

Bohr's radius (the radius of the first,

n = 1

, orbit of hydrogen) is

a_{0} = \frac{ε _{0} h ^{2}}{π m e ^{2}} \approx 0.53 \overset{˚}{A} .

a_{0} = \frac{ε _{0} h ^{2}}{π m e ^{2}} = 0.53 \overset{˚}{A}

CBSE Class 12 Board · 2010 · Subjective

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