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EASYMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryAtomic StructureIntro

The energy ratio of photons of wavelength 3000 Å and 6000 Å is

0.2 : 1

1.1 : 2

2.1 : 1

3.1 : 4

Explanation

E = hc/λ, so E ∝ 1/λ. E₁/E₂ = λ₂/λ₁ = 6000/3000 = 2 : 1.

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