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प्रश्न
What is a diffraction grating?
उत्तर
A diffraction grating is an optical component with a periodic structure that splits and diffracts light into several beams travelling in different directions.
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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 ______.
First diffraction minimum due to a single slit of width 1.0 × 10-5 cm is at 30°. Then wavelength of light used is ______.
What is diffraction?
Differentiate between Fresnel and Fraunhofer diffraction.
What is Fresnel’s distance? Obtain the equation for Fresnel’s distance.
What is resolution?
What is Rayleigh’s criterion?
Discuss diffraction at single slit and obtain the condition for nth minimum.
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.
Obtain the equation for resolving power of optical instrument
What is the difference between resolution and magnification?
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.
