The wavelength λe of an electron and λP of a photon of same energy E are related by:
1
\(\lambda_P \propto \lambda^2_e\)
2
\(\lambda_P \propto \lambda_e\)
3
\(\lambda_P \propto \sqrt{\lambda_e}\)
4
\(\lambda_P \propto \frac 1{\sqrt{\lambda_e}}\)
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