Nodal Lines
Part of the Optics, Waves and Modern Physics section of Coddy's Physics journey. Lesson 26 of 53.
Nodal lines: calm water. Along each one:
|r₁ − r₂| = (m + ½)λ
Antinodal lines between them:
|r₁ − r₂| = m λ
The middle line is antinodal. The first nodal line out from it has m = 0.
Challenge
The ripples have a wavelength of 2 cm. A point lies on the second nodal line out from the middle (m = 1). What is its path difference Δ?
Try it yourself
Test yourselfThis lesson includes a short quiz. Start the lesson to answer it and track your progress.
All lessons in Optics, Waves and Modern Physics
1Reflection and Refraction
Reflection of LightThe Refractive IndexSnell's LawTotal Internal ReflectionDispersionApparent DepthRecap - Optical Fiber4Mechanical Waves
What a Wave IsTwo Graphs of a WaveWhen Pulses MeetInterferenceStanding WavesHarmonicsRecap - Guitar String