Physics-
General
Easy

Question

Electron in a hydrogen atom is replaced by an identically charged particle muon with mass 207 times that of electron. Now the radius of K shell will be

  1. 2.56 × 10–3 text Å end text    
  2. 109.7 text Å end text    
  3. 1.21 × 10–3 text Å end text    
  4. 22174.4 text Å end text    

The correct answer is: 2.56 × 10–3 text Å end text

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integral x to the power of 3 end exponent square root of fraction numerator 1 plus x to the power of 2 end exponent over denominator 1 minus x to the power of 2 end exponent end fraction end root d x equals A square root of 1 minus x to the power of 4 end exponent end root minus B x to the power of 2 end exponent square root of 1 minus x to the power of 4 end exponent end root plus C s i n to the power of negative 1 end exponent invisible function application x to the power of 2 end exponent plus D comma text end textthen A+B+C is equal to

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