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प्रश्न
What is Rayleigh’s criterion?
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उत्तर
The images of two-point objects are just resolved when the central maximum of the diffraction pattern of one falls over the first minimum of the diffraction pattern of the other.
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संबंधित प्रश्न
What is a diffraction grating?
What is resolution?
Discuss diffraction at single slit and obtain the condition for nth minimum.
Discuss the experiment to determine the wavelength of monochromatic light using a diffraction grating.
Discuss the experiment to determine the wavelength of different colours using diffraction grating.
What is the difference between resolution and magnification?
Light of wavelength of 5000 Å produces diffraction pattern of the single slit of width 2.5 μm. What is the maximum order of diffraction possible?
Consider sunlight incident on a pinhole of width 103A. The image of the pinhole seen on a screen shall be ______.
- a sharp white ring.
- different from a geometrical image.
- a diffused central spot, white in colour.
- diffused coloured region around a sharp central white spot.
What is diffraction?
When light bends around an obstacle or aperture, where does it spread?
What appears near the geometrical shadow of an opaque object?
What does the similarity between the diffraction pattern and an interference pattern indicate?
What is the roughly stated wavelength range of light?
For diffraction to be significant, how must the size of the obstacle or aperture compare with the wavelength of the wave?
