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प्रश्न
What is diffraction?
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उत्तर
Diffraction is bending of waves around sharp edges into the geometrically shadowed region.
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संबंधित प्रश्न
First diffraction minimum due to a single slit of width 1.0 × 10-5 cm is at 30°. Then wavelength of light used is ______.
Discuss the special cases on first minimum in Fraunhofer diffraction.
What is Fresnel’s distance? Obtain the equation for Fresnel’s distance.
What is resolution?
What is Rayleigh’s criterion?
Discuss the diffraction at a grating and obtain the condition for the mth maximum.
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.
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 slit of width 104 A. The image seen through the slit shall ______.
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?
Why are diffraction effects too small to observe with the naked eye in most everyday situations?
What limit remains even when an optical instrument is built perfectly?
