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MHT CET Physics question

PhysicsDual Nature of Matter and RadiationMHT CET

If an electron has an energy such that its de Broglie wavelength is 5500 Å, then the energy value of that electron is [EAMCET (Engg.) 2015]

Answer: (D)

Solution

\dfrac{h^2}{2mλ^2}\dfrac{(6.63×10^{-34})^2}Extra open brace or missing close brace{2×9.1×10^{-31}10^{-7})$

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Question ID VK-084725