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Questions
What is meant by coherent sources?
What are coherent sources?
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Solution
Two light sources are said to be coherent if they produce waves that have the same phase or constant phase difference, same frequency or wavelength (monochromatic), same waveform and preferably the same amplitude.
RELATED QUESTIONS
Write the important characteristic features by which the interference can be distinguished from the observed diffraction pattern.
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A graph is plotted between the fringe-width Z and the distance D between the slit and eye-piece, keeping other adjustment same. The correct graph is
A. |
B. |
C. |
D. |
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A thin transparent sheet is placed in front of a slit in Young's double slit experiment. The fringe width will ____________.
In a Young's double-slit experiment, the intensity at a point where the path difference is `lambda/3` (`lambda` being the wavelength of the light used) is I. If I0 denotes the maximum intensity, then `"I"/"I"_0` is equal to ______.
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`[cos pi/2=0]`
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(cos 60° = 0.5, `lambda` = wavelength of light, d = slit width)
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