Question 359: Wave Optics

Question

In Young's experiment with a monochromatic source and two slits, one of the slits is covered with black opaque paper, the fringes will

Accepted Answer

Young's double-slit experiment relies on the interference of light waves from two slits to produce fringesÃ¢ÂÂa pattern of dark and bright bands. The basic principle behind this phenomenon is the constructive and destructive interference of coherent light waves emanating from the two slits. When these waves superimpose, they create alternating bright (constructive interference) and dark (destructive interference) fringes on a screen placed behind the slits.
If one of the slits is covered with black opaque paper, there won't be any interference because only one light source will be contributing to the pattern. The process of interference requires two coherent sources of light. Without the second slit, there is no second wave to interfere with the first wave, and therefore, the interference pattern of fringes cannot be formed.
Hence, the fringes will:
Option D:
not be observed

Answer

be darker

Answer

be narrower

Answer

be broader

Answer

not be observed

Wave Optics

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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