Practice portal › Atoms › Bohr Model of the Hydrogen Atom

Some energy levels of a molecule are shown in the figure with their wavelengths of transitions. Then:

Asked in Re-NEET 2024 · Energy levels and ionisation

• (1) λ₃>λ₂, λ₁=2λ₂
• (2) λ₃>λ₂, λ₁=4λ₂
• (3) λ₁>λ₂, λ₂=2λ₃
• (4) λ₂>λ₁, λ₂=2λ₃

Step-by-step solution

Why the other options are wrong

• (1) λ₃ is the largest energy gap, 2E, so it is the shortest wavelength, not longer than λ₂.
• (2) λ₃ is the largest energy gap, so it is the shortest wavelength; and λ₁=2/3λ₂, not 4λ₂.
• (3) λ₂=2λ₃ is right, but λ₁ has the larger gap (1.5E against E), so λ₁<λ₂.

Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.