JEE Main 2018 — Dual Nature of Matter Question with Solution
JEE Main 2018 (15 Apr Shift 2 Online)
Question
If the de Broglie wavelengths associated with a proton and an -particle are equal, then the ratio of velocities of the proton and the -particle will be:
Choose an option
Show full solutionCorrect option: C
Correct answer
C
Step-by-step explanation
According to question,
Using,
mass of -particle is 4 times of mass of proton)
So, ; i.e.,
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This is a previous-year question from JEE Main 2018, covering the Dual Nature of Matter chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.