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Dual Nature of Radiation and Matter — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsDual Nature of Radiation and Matter1 Mark
Question
Two lines, A and B, in the plot given below show. the variation of de Broglie wavelength, $\lambda$ versus $1/\sqrt{\text{V}},$ where V is the accelerating potential difference, for two particles carrying the same charge. Which one of two represents a particle of smaller mass?

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Answer

$\lambda = \frac{\text{h}}{\sqrt{2\text{meV}}}$
Straight line denoted by ‘B’.

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