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How is polarisation of light obtained by scattering of light?
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An unpolarised light of intensity 32 Wm-2 passes through three Polaroids such that the axes of the first and the last Polaroids are at 90°. What is the angle between the axes of the first and middle Polaroids so that the emerging light has an intensity of only 3 Wm-2?
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The reflected light is found to be plane polarised when an unpolarized light falls on a denser medium at 60° with the normal. Find the angle of refraction and critical angle of incidence for total internal reflection in the denser to rarer medium reflection.
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Discuss about simple microscope and obtain the equations for magnification for near point focusing and normal focusing.
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What is the near point focusing?
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Why is oil-immersed objective preferred in a microscope?
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What are the advantages and disadvantages of using a reflecting telescope?
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What is the use of an erecting lens in a terrestrial telescope?
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What is the use of collimator in a spectrmeter?
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What are the uses of spectrometer?
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What is the remedy of hypermetropia?
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What is astigmatism? What is its remedy?
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Discuss about simple microscope and obtain the equations for magnification for near point focusing and normal focusing.
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Obtain the equation for resolving the power of the microscope.
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