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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceSingle correctEasyCalculation

JEE Main 30 July 2022, Shift 2, Chemistry Q32

Question 32 of 90 in this shift, Chemistry question 2 of 30, Section A.

When the kinetic energy of an electron is increased nine times, the wavelength of the de-Broglie wave associated with it would become :
  1. (1)One-thirdOfficial answer
  2. (2)Three times
  3. (3)Two third
  4. (4)One sixth

Official answer

Option 1

NTA final key.

Chapter
Structure of Atom
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.