Electromagnetic Waves and Communication System — Class 11 Maharashtra HSC Physics revision notes
A 6-page visual revision sheet for Electromagnetic Waves and Communication System, written for Class 11 Maharashtra HSC 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 Electromagnetic Waves and Communication System sheet covers
- electromagnetic wave
- What an EM wave is
- Speed and the E-B ratio
- speed in free space
- speed in a medium
- ratio of amplitudes
- intensity
- electromagnetic spectrum
- The EM spectrum, in order of increasing frequency
- Reading the spectrum
- ground wave
- sky wave
- space wave
- Propagation of radio waves
- Range of a space wave
- range from a transmitter of height h
- total range, transmitter height h_t, receiver height h_r
- communication system
- transducer
- Elements of a communication system
- modulation
- carrier wave
- Types of modulation
- Amplitude modulation (AM)
- Frequency modulation (FM)
- 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 Electromagnetic Waves and Communication System 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.