wave-optics

Related Questions

• Light of wavelength $589.3\,nm$ is incident normally on the slit of width $0.1\,mm.$ What will be the angular width of the central diffraction maximum at a distance of $1\,m$ from the slit

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• Two slits, 4 mm apart, are illuminated by light of wavelength 6000 Å. What will be the fringe width on a screen placed 2m from the slits

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• Two sources give interference pattern which is observed on a screen, D distance apart from the sources. The fringe width is 2w. If the distance D is now doubled, the fringe width will

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• Light coming from a star is observed to have a wavelength of 3737 Å, while its real wavelength is 3700 Å. The speed of the star relative to the earth is [Speed of light $3 \times {10^8}m/s$]

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• A star emits light of 5500 Å wavelength. Its appears blue to an observer on the earth, it means

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