STANDARD Physics Energy of Photons MCQ Question
Compare the energies of two radiations E₁ with wavelength 800 nm and E₂ with wavelength 400 nm
E₁ = 2E₂
E₁ = E₂
E₂ = 2E₁
E₂ = −1/2E₁
Correct Answer
Detailed Explanation
Energy is inversely proportional to wavelength (E = hc/λ). Since λ₂ = 400 nm is half of λ₁ = 800 nm, E₂ will be twice E₁, hence E₂ = 2E₁.
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