According to Bohr’s model of the atom, the angular momentum of an electron in a stationary orbit is an integral multiple of
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → \(h/2\pi\)
Bohr’s second postulate picks out the stable orbits of the electron. In these orbits the angular momentum can take only the values \( L=nh/2\pi \), with \( n=1,2,3,\ldots \). So the angular momentum is always a whole-number multiple of \( h/2\pi \).
NCERT (2026-27):
Bohr Model of the Hydrogen Atom – “… This postulate states that the electron revolves around the nucleus only in those orbits for which the angular momentum is some integral multiple of h/2π where h is the Planck’s constant …”