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Optics
A small object is stuck in an optical system. Left side: n=3/2, R=4 cm (concave spherical surface according to the object), 3.5 cm from object. Right side: n=4/3, planar reflecting surface, 2.0 cm away from the object. Object is in the middle of this system. Find all characteristics of two images formed by this system.
Optics
Is there an irradiance limit a laser can have in air due to the dielectric strength of air or does the dielectric strength of air only limit the frequency of light it is possible to use?
Optics
Explain how Newton's Rings can be obtained in laboratory and why Newton's rings are circular in shape.How the Newton's rings are used to find reflective index U(MIYOO) of the liquid?
Optics
The incident light is polarized linearly with the azimuth of oscillations, which equals +45º. Can it be transformed into the light, polarized by the right circle, by single reflection?
Optics
If a plate of Iceland spar is put onto a page of printed text, the split of letters occurs. Will there be a doubling of the image, if you look through the same plate at a distant point?
Optics
Linearly polarized light is the sum of two circular polarizations, in order to get one circular polarization, the second one should be suppressed. By means of reflection it is possible to suppress only one linear polarization (reflection at the Brewster angle), that is why it is impossible to turn light into polarized along the right circle by a single reflection.
Optics
A quartz plate, which is 1mm thick, is cut perpendicular to the optical axis. How to determine from which quartz - the right- or levogyrate – the plate is made, having before two nicoles and the source of: 1) monochromatic light; 2) white light?
Optics
Two thick plates of uniaxial crystal, equally oriented and very little different in thickness, in the crossed nicols illuminate white light separately. Why can painting occur in the same environment, if you turn one plate relative to the other by 90º?
Optics
Why the demonstration experiments on interference of the polarized beams is more convenient to be performed with thin, and not thick slices? Why, even with thin plates of Iceland spar is it difficult to obtain an interference pattern in white light?
Optics
Two coherent bundles of quasi-monochromatic unpolarized light of equal intensity cause interference fringes on the screen. The crystal plate of which thickness must be entered on the path of one of these bundles so that the interference fringes disappear and so that they could not be recovered by any glass plate, introduced into another beam? How will the picture change, if a polaroid is placed behind the crystal plate? In what position of the polaroid there will be no fringes?
