Superposition, Coherence & Intensity
In Young's experiment with a monochromatic source and two slits, one of the slits is covered with black opaque paper, the fringes will
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Answer: (d)
- Interference needs light from two coherent sources.
- With one slit covered, only one source remains, so there is nothing to interfere with.
- The double-slit fringes disappear (only a faint single-slit diffraction pattern remains).
- So the answer is (d) not be observed.