CBSE Class 12-science Answered
what is llyod's mirror and why the condition of maximum intensity and minimum intensity are interchanged?
Asked by spsberry8 | 28 Oct, 2010, 12:00: AM
Expert Answer
Lloyd's mirror is a classic optics experiment and was first described in 1834 and again in 1837 by Humphry Lloyd . In the experiment, light from a monochromatic slit source reflects from a glass surface 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.
Lloyd’s Mirror also produces interference, but has a dark band where we would have expected a bright one!
Reason: light suffered a 180° phase change upon reflection.
Answered by | 30 Oct, 2010, 04:49: PM
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