Description of simple harmonic motion (SHM) using rotating vectors and complex exponentials.
The principle of superposition states that when two waves meet, their displacements add algebraically.
When a wave changes mediums, its frequency never changes . Only its speed and wavelength change.
The particles of the medium vibrate perpendicular to the direction of wave propagation (e.g., light waves, waves on a plucked guitar string). ap french waves and vibrations pdf
: Indicates that the force always points opposite to the direction of displacement, pulling the object back toward equilibrium. Period and Frequency Period (
phase shift). The boundary exerts an equal and opposite force on the string.
The particles of the medium vibrate parallel to the direction of wave propagation (e.g., sound waves). These waves consist of alternating compressions (high density) and rarefactions (low density). Description of simple harmonic motion (SHM) using rotating
These occur when waves of the same frequency and amplitude travel in opposite directions and interfere. Look for "nodes" (no motion) and "antinodes" (max motion).
The book uses simple math like algebra and basic calculus to explain complex movements. It starts with single moving objects and builds up to large, continuous wave systems.
: The light traveling through the film goes an extra distance equal to twice the film's thickness ( Only its speed and wavelength change
The principle of superposition states that when two or more waves overlap, the resulting displacement is the algebraic sum of the displacements of the individual waves.
λn=2Lnlambda sub n equals the fraction with numerator 2 cap L and denominator n end-fraction The corresponding frequencies are:
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