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Dual Nature of Matter

JEE Main level, single correct, medium

53 of 200

Question 53 of 200

What should be the order of arrangement of de-Broglie wavelength of electron $\left({\lambda }_{e}\right)$ , an $\alpha$ -particle $\left({\lambda }_{\alpha }\right)$ and proton $\left({\lambda }_{p}\right)$ given that all have the same kinetic energy ?

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Answer: (C) ${\lambda }_{e}\gt {\lambda }_{p}\gt {\lambda }_{\alpha }$

\lambda =\dfrac{h}{p}=\dfrac{h}{\sqrt{2mE}}\propto \dfrac{1}{\sqrt{m}}

{m}_{\alpha }\gt {m}_{p}\gt {m}_{e}

{\lambda }_{e}\gt {\lambda }_{p}\gt {\lambda }_{\alpha }

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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JEE Main Physics practice question on Dual Nature of Matter (Matter Waves), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.

What should be the order of arrangement of de-Broglie wavelength of electron (λe)\left({\lambda }_{e}\right)(λe​), an α\alphaα-particle (λα)\left({\lambda }_{\alpha }\right)(λα​) and proton (λp)\left({\lambda }_{p}\right)(λp​) given that all have the same kinetic energy ?

JEE Main question paper PDF

More Physics practice

What should be the order of arrangement of de-Broglie wavelength of electron $\left({\lambda }_{e}\right)$ , an $\alpha$ -particle $\left({\lambda }_{\alpha }\right)$ and proton $\left({\lambda }_{p}\right)$ given that all have the same kinetic energy ?