JEE Main 2022ChemistryStructure Of AtomHeisenberg Uncertainty PrincipleeasyNumerical

JEE Main 2022Structure Of Atom Question with Solution

From: JEE Main 2022 (Online) 27th June Morning Shift

Question

If the uncertainty in velocity and position of a minute particle in space are, 2.4 1026 (m s1) and 107 (m) respectively. The mass of the particle in g is ____________. (Nearest integer)

(Given : h = 6.626 1034 Js)

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Show full solutionCorrect answer: 22
Correct answer
22

Step-by-step explanation

We know from hisenberg uncertainty principle

Given,

x = 107 m

x = 2.4 1026 m/s

h = 6.626 1034 Js

m = 0.022 kg

m = 22 gm

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About this question

This is a previous-year question from JEE Main 2022, covering the Structure Of Atom chapter of Chemistry. 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.