Bohr's orbits are called stationary, because ________.
Bohr orbits stationary because angular momentum quantized, no radiation despite acceleration.
Ref: NCERT Physics Class 12 Chapter 12 Atoms
#stationary orbits
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In Bohr’s model, what defines the stationary orbits of an electron?
**Quantization basis** de Broglie standing wave requires constructive interference, integer wavelengths in orbit, otherwise destructive, so only certain radii allowed r_n = n² a₀, a₀=0.53 Å, angular momentum L = n h/2π, de Broglie explains why orbits are stationary - electron wave closed on itself. Bohr’s second postulate defines stationary orbits as those where the angular momentum is an integral multiple of h/2π . Using E_n = -13.6/n² eV, r_n = n² a₀, L = n h/2π, R = R₀ A^¹/³, BE = Δm c² and 1 u = 931.5 MeV, evaluation yields Quantized angular momentum, consistent with Bohr model and nuclear
Ref: NCERT > Physics Book > Atoms and Nuclei > De Broglie Hypothesis and Quantization in Bohr Model
