An electron, an α-particle, and a

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Target Exam

CUET

Subject

Physics

Chapter

Dual Nature of Radiation and Matter

Question:

An electron, an α-particle, and a proton have the same kinetic energy. Which of these particles has the shortest de Broglie wavelength?

Options:

proton

same

α-particle

cannot determine.

Correct Answer:

α-particle

Explanation:

λ=h/p=h/\(\sqrt { 2mK}\)