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Which of the following figures represent the variation of particle momentum and the associated de-Broglie wavelength?
A
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B
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C
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D
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Detailed Solution
$\lambda = \frac{h}{p} \Rightarrow p \propto \frac{1}{\lambda}$
Momentum is inversely proportional to wavelength, so the p–$\lambda$ graph is a rectangular hyperbola: momentum decreases as wavelength increases.
Momentum is inversely proportional to wavelength, so the p–$\lambda$ graph is a rectangular hyperbola: momentum decreases as wavelength increases.