Radio astronomers often study the radiation emitted by a hydrogen atom from a transition between the two hyperfine levels associated with the ground state. This radiation has a wavelength of 21 cm

What is the energy difference between the hyperfine levels? (1 eV = 1.60 × 10-19 J) A) 5.9 × 10-6 eV
B) 5.9 × 10-25 J
C) 1.7 × 10-24 J
D) 4.7 × 10-25 J


A

Physics & Space Science

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