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NEET 2023 · Bohr Model: Orbits, Speed & Angular Momentum

Bohr Model: Orbits, Speed & Angular Momentum question from NEET 2023

Q60NEET 2023Easy

Bohr Model: Orbits, Speed & Angular Momentum

The radius of inner most orbit of hydrogen atom is 5.3×10−11 m5.3 \times 10^{-11}\text{ m}. What is the radius of third allowed orbit of hydrogen atom?

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Answer: (c)

  1. rn=n2r1r_n = n^2 r_1
  2. r3=9×0.53 A˚=4.77 A˚r_3 = 9 \times 0.53\ \mathring{A} = 4.77\ \mathring{A}
  3. So the answer is (c).
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