HARDMCQ SINGLEJEE Mains ChemistryPhysical ChemistryAtomic StructureIntro
Find the frequency of light that corresponds to photons of energy 5.0 × 10⁻⁵ erg
0.7.5 × 10²¹ sec⁻¹ (unit error option)
1.7.5 × 10²¹ sec
2.7.5 × 10²¹ sec⁻¹
3.7.5 × 10²¹ sec⁻¹
Explanation
ν = E/h = (5.0×10⁻⁵ erg) / (6.63×10⁻²⁷ erg·s) = 7.54×10²¹ s⁻¹ ≈ 7.5×10²¹ sec⁻¹
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