Physics
Oscillations and Waves: A Student's Guide
By Dr. Sandhya Classes Editorial Team · Published 2026-10-03 · Updated 2026-10-03 · 3 min read
Simple harmonic motion, wave equations, sound and standing waves explained clearly.
Physics at Dr. Sandhya Classes is taught personally by Dr. Sandhya, Ph.D. in Physics, teaching since 2015 — offline in Zirakpur (Highland Marg & Lohgarh Road) and online across India. About Dr. Sandhya
What makes motion simple harmonic
A restoring force proportional to displacement produces SHM. Identify this condition before using SHM formulas.
Energy in SHM
Kinetic and potential energy exchange continuously while the total stays constant.
Travelling waves
Learn to read wave equations for amplitude, wavelength, frequency and direction.
Standing waves and resonance
Strings and pipes produce specific allowed frequencies — useful for both boards and competitive exams.
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