Waves — Class 11 CBSE Physics revision notes
A 3-page visual revision sheet for Waves, written for Class 11 CBSE Physics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Waves sheet covers
- What a mechanical wave is
- Transverse vs longitudinal
- Transverse
- Longitudinal
- Wave basics
- speed, frequency and wavelength
- angular frequency
- wave number
- Speed of a wave on a string
- Two speed formulas
- transverse wave on a string, tension T, linear density μ
- sound in a gas, Laplace's correction
- Wave speed and fundamental frequency on a string
- Principle of superposition
- Standing waves
- Standing waves on a string, both ends fixed
- allowed wavelengths, n = 1, 2, 3...
- allowed frequencies
- n = 1 is the
- Beats
- The Doppler effect
- Doppler formula
- observer speed v_o, source speed v_s, wave speed v
- Symbols
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Physics chapter by chapter against your real exam dates and free hours, and when the plan reaches Waves the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.