The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm(red) and 486 nm (blue). Light from a hydrogen lamp illuminates a diffraction grating with 500lines/mm , and the light is observed on a screen 1.5m behind the grating.   What is the distance between the first-order red and blue fringes?

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Q: The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm…

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Q: The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm…

A:

Q: The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm…

A: Red wavelength, λr = 656×10-9 mBlue wavelength, λb = 486×10-9 mLine per mm, N = 550 lines/mmScreen…

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Q: The two most prominent wavelengths in the light emitted by a hydrogen Discharge lamp are 656 nm…

A:

Q: The two most prominent wavelengths in the light emitted by a hydrogen discharge lamp are 656 nm…

A: Given The wavelength of red light   = 656 nm The wavelength of Blue light = 486 nm Diffraction…

Diffraction of light

In physics, the term diffraction is defined as the bending of light around the corners of the obstacle. As a light ray passes by an aperture, it bends around the edges or through slits, it spreads out through a narrow opening. The diffracted light will produce fringes of bright and dark or colored bands which are labeled as a diffraction pattern.