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lf En = total energy, Kn = kinetic energy, Vn = potential energy and rn = radius of the nth orbit, then based on Bohr’s theory, match the parameter in Column I with the values in Column II.
  • a)
    a
  • b)
    b
  • c)
    c
  • d)
    d
Correct answer is option 'B'. Can you explain this answer?
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lf En= total energy, Kn = kinetic energy, Vn = potential energy and rn...
Vn= 2En and Kn = - En
so Vn/Kn= -2
rn is proportional to n^2/Z and En is proportional to Z^2/n^2. combining these two we get rn inversely proportional to En so power of En that is x will be -1.
angular momentum in lowest orbital is zero
and rn is inversely proportional to Z so power of Z that is n=1. so option (b) is correct.
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