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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 ______.
विकल्प
400 Å
500 Å
600 Å
700 Å
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उत्तर
First diffraction minimum due to a single slit of width 1.0 × 10-5 cm is at 30°. Then wavelength of light used is 500 Å.
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संबंधित प्रश्न
Two coherent monochromatic light beams of intensities I and 4I are superposed. The maximum and minimum possible intensities in the resulting beam are ______.
What is diffraction?
Differentiate between Fresnel and Fraunhofer diffraction.
Mention the differences between interference and 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.
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?
What does the similarity between the diffraction pattern and an interference pattern indicate?
Why is diffraction not easily noticeable in light?
For diffraction to be significant, how must the size of the obstacle or aperture compare with the wavelength of the wave?
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?
