query: Why is the phase difference an "odd number of half-wavelengths" when two waves interfere destructively?
positive_passages.docid: 155316
positive_passages.text: Are two waves out of phase only when the phase difference is $\pi$?
negative_passages.docid: 156751
negative_passages.text: What is the difference between diffraction and interference of light?
negative_passages.docid: 144886
negative_passages.text: How many possible electromagnetic wavelengths are possible?
negative_passages.docid: 139012
negative_passages.text: What is the difference between phase difference and path difference?
negative_passages.docid: 138159
negative_passages.text: Wavelength and resolution
negative_passages.docid: 6534
negative_passages.text: Is coherent light required for interference in Young's double slit experiment?
negative_passages.docid: 29740
negative_passages.text: What is the physical significance of the imaginary part when plane waves are represented as $e^{i(kx-\omega t)}$?
negative_passages.docid: 10025
negative_passages.text: Why does wavelength change as light enters a different medium?
negative_passages.docid: 126642
negative_passages.text: How position of source affects YDSE interference?
negative_passages.docid: 108353
negative_passages.text: Coherent sources for interference
negative_passages.docid: 24491
negative_passages.text: Frequency dependence of electromagnetic reflection
negative_passages.docid: 6890
negative_passages.text: Why does electron orbital circumference have to be in multiples of de Broglie wavelengths?
negative_passages.docid: 30498
negative_passages.text: Energy conservation and interference
negative_passages.docid: 125032
negative_passages.text: Phase added on reflection at a beam splitter?
negative_passages.docid: 56452
negative_passages.text: What happens to waves when they hit smaller apertures than their wavelenghts?
negative_passages.docid: 61988
negative_passages.text: Why do two beams of light pass through one another without interacting?
negative_passages.docid: 122405
negative_passages.text: Why does the refractive index depend on wavelength?