Physics · Quantum Mechanics
Consider a free particle in one dimension described by the wavefunction: ψ(x, t=0) = A exp(ipx/ℏ) + B exp(-ipx/ℏ) The probability current density corresponding to ψ(x, t) at a later time t is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
Share:
- 1p(|A|2 + |B|2)m cos(p22mℏ t)
- 2p(|A|2 + |B|2)m
- 3p(|A|2 - |B|2)m✓
- 4p(|A|2 - |B|2)m cos(p22mℏ t)
Correct answer
p(|A|2 - |B|2)m
Download Single Question PDF
Save this question and verified answer as a clean study sheet with live clickable link.
👥
Share with Friends & Study Groups
Challenge your peer aspirants on WhatsApp or Telegram to solve this question!
Online Test Series
Start Free Mock Test →Preparing for Physics?
Practice full-length mock tests with real exam timers, instant score analysis, and all-India ranking.
Chapter Practice
Practice Quantum Mechanics MCQs →Want more practice questions on Quantum Mechanics?
Solve complete topic-wise tests with detailed solutions on GkGet.
Related Practice Questions
Recommended practice questions in Physics · Quantum Mechanics