JEE Main 2022 · PhysicsMultiple choiceSingle correctEasyCalculation

JEE Main 30 July 2022, Shift 2, Physics Q19

Question 19 of 90 in this shift, Physics question 19 of 30, Section A.

The de Broglie wavelength associated with an electron, accelerated through a potential difference of 15056 V, is:

(1)0.1 ÅOfficial answer
(2)1 Å
(3)10 Å
(4)100 Å

Official answer

Option 1

NTA final key.

Chapter: Dual Nature of Radiation and Matter
Topic: Matter Waves
Idea tested: Wavelength from Accelerating Potential

Same idea in other shifts

Asked 5× in all

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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.