0
What else can I help you with?
What is Difference between prismatic spectrum and grating spectrum?
Grating spectrum is a spectrum produced as a result of diffraction, as by a grating.Whereas prismatic spectrum is a consequence of dispersion of light by a prism. In grating spectrum you also observe different orders of spectral lines which does not happen in prismatic spectrum. Hope this helps VIBHAV ZUTSHI B.Tech '13 IIT Kharagpur
If I laser beam of wavelength 630 mm is directed normally at the diffraction grating 300 lines per millimetre calculate the number of defected orders produced?
The number of diffracted orders produced by a diffraction grating is given by the formula: nλ/d = sin(θ), where n is the order, λ is the wavelength, d is the spacing of the diffraction grating lines, and θ is the diffraction angle. Given the values, we can rearrange the formula to solve for n: n = d * sin(θ) / λ. Plugging in the values (d = 1/300 mm and λ = 630 mm), we can calculate the number of diffracted orders produced.
What will happen if the width of clear space and ruled space is made equal in diffraction grating?
If the width of the clear space and ruled space in a diffraction grating is made equal, it will result in the zeroth order of diffraction being suppressed. This is because the light will predominantly be diffracted into higher orders due to the equal spacing of the slits, leading to changes in the overall diffraction pattern observed.
How does the interference pattern change when the number of slits in a diffraction grating increased?
As the number of slits in a diffraction grating increases, the interference pattern becomes more distinct and sharper. More slits create more diffraction orders, leading to narrower peaks and more constructive interference at specific angles. This results in a more pronounced and detailed interference pattern.
What is the condition for absent spectra in a diffraction grating?
In a plane diffraction grating, if the angle of diffraction is such that the minima due to diffraction component in the intensity distribution falls at the same positions of principal maxima due to interference component, then, that order of principal maxima will be missing or absent. For more information, please visit: http://www.theglobaltutors.com/theglobaltutors/Optics-Homework-Help/Spectra-Diffraction-Grating https://msk1986.files.wordpress.com/2010/12/unit-iii-diffraction.pdf
How does the interference pattern change when the number of slits in a diffraction grating is increased?
When the number of slits in a diffraction grating is increased, the interference pattern produced will have more distinct maxima and minima. The fringes will be narrower and more closely spaced, leading to a more defined and detailed pattern. Additionally, the overall intensity of the diffraction pattern will decrease due to light being spread over more orders.
Is the first order spectra wider than the second order spectra in a diffraction grating experiment?
Yes, the first order spectra is typically wider than the second order spectra in a diffraction grating experiment because the diffraction angle for higher orders (such as second order) is smaller, resulting in a narrower spread of the spectral lines.
A laser beam of wavelength 630nm is directed normally at a diffraction grating with 300 lines per millimetre. Calculate the angle of diffraction of each of the first two orders.?
1/(3*10^5) = 0.000003(recurring) (630*10^-9)/0.000003(recurring) =0.189 sin^-1(0.189)=10.9 degrees (first order) 10.9*2=21.8 degrees (second order)
Comparison of electron diffraction with x ray diffraction?
electrons have ~6 orders of magnitude higher scattering cross section compared to x-rays.
Where can one purchase steel grating?
Steel grating can be purchased from hardware stores, specialized metal suppliers, and online retailers. It is important to ensure that you are purchasing from a reputable supplier to ensure quality and durability of the product.
Will the angular separation between red blue rays be greater in first or in second order?
The angular separation between red and blue rays will be greater in the first order compared to the second order. This is because diffraction angles increase with higher orders of diffraction.
What happens to the intensity of the bright fringes at a higher order m?
The intensity of the bright fringes at higher orders of diffraction m decreases because the light is spread over a larger area due to increased diffraction angles. This results in less light being concentrated at each individual bright fringe.
