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Fresnel Bi Prism is to find wavelength of monochromatic light sorce and to determine the thickness thin glass sheet placed on sorce Written by Ajay kumar
to find wavelength of a monochromatic light source and for determining the thickness of a thin glass sheet when placed between bi prism and screen or eyepiece
Using biprism interference pattern can be produced. Therefrom the band width beta is to be measured. Now using the formula, beta = lambda*D/d Here lambda is the required wavelength of the source light. D is the distance of the screen from the virtual sources. d is the distance between the two virtual coherent sources. Knowing beta, D and d, required lambda could be calculated.
A fresnel lens is a type of magnifying glass itself. NOT the most familiar type like sherlock holmes used. You can find fresnel lenses stuck to the back window of vans, in lighthouse lenses. any magnifying lens that has concentric ridges to achieve the magnification effect only using a thin lens.
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The answer depends on what the constant is: the y-intercept in a linear graph, constant of proportionality, constant of integration, physical [universal] constant.
One can find information on time constant online at various websites. One can find information about time constant at websites such as Wisc-Online, Learn About Electronics, and Ladyada.
The gravitational constant was found by Newton, not Einstein.
To find the constant rate of change is by taking the final minus initial over the initial.
Find the derivative
using a timer
The constant Pi is used to find the perimeter of a circle which is known as the circumference.