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de Broglie Wavelength

3 Questions

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2025 1 question

A photon and an electron (mass $m$) have the same energy $E$. The ratio $(\lambda_{\text{photon}} / \lambda_{\text{electron}})$ of their de Broglie wavelengths is ($c$ is the speed of light):

2024 1 question

The graph which shows the variation of $\left(\frac{1}{\lambda^2}\right)$ and its kinetic energy, $E$ is (where $\lambda$ is de Broglie wavelength of a free particle):

2022 1 question

The graph which shows the variation of the de Broglie wavelength ($\lambda$) of a particle and its associated momentum ($p$) is :