Lloyd's mirror
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Lloyd's mirror is an optics experiment that was first described in 1834 by Humphrey Lloyd in the Transactions of the Royal Irish Academy. Its original goal was to provide further evidence for the wave
Figure 2. Young's two-slit experiment displays a single-slit diffraction pattern on top of the two-slit interference fringes.
Wave interference
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In physics, interference is a phenomenon in which two coherent waves are combined by adding their intensities or displacements with due consideration for their phase difference. The resultant wave may
Lloyd's mirror
…at a small angle and appears to come from a virtual source as a result. The reflected light interferes with the direct light from the source, forming interference fringes. It is the optical wave analogue to a sea interferometer. Lloyd’s Mirror is used to produce two-source interference patterns that have important…
Interfering water waves on the surface of a lake
Photograph of 1.5cm x 1cm region of soap film under white light. Varying film thickness and viewing geometry determine which colours undergo constructive or destructive interference. Small bubbles significantly affect surrounding film thickness.
Interference fringes in overlapping plane waves
Smartphone with iridescent back panel