According to Bohr's 2nd postulate, the angular momentum of an electron in one of its orbits is given by:

Correct answer: D. mvr=nh/2π

  • A. mr=nh/2π
  • B. mv= nh/2π
  • C. mvr=h/2π
  • D. mvr=nh/2π

Explanation

D is the correct option because According to Bohr's second postulate, the angular momentum of an electron in one of its orbits is quantized and is an integral multiple of h/2π , where h is Planck's constant, n is the principal quantum number, m is the mass of the electron, v is the velocity of the electron, and r is the radius of the orbit.

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