Free particles, potential steps, rectangular barriers (quantum tunneling), and the 1D harmonic oscillator.
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Elements of the Dirac equation and relativistic effects. Matrix Algebra: Applications to quantum systems. quantum mechanics book by gupta kumar sharma free updated
Provides free lecture notes, assignments, and exams for undergraduate and graduate quantum physics courses.
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Simple and lucid language making complex concepts easy to grasp.
Some academic distributors like Heritage Publishers list it for higher international rates (~Rs. 1200).
Most college libraries stock multiple copies of this textbook. Check if your institution offers an e-library portal with digital access.