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Optics
State the salient features of Fraunhoffer double slit diffraction pattern and obtain an
expression for intensity distribution.
expression for intensity distribution.
Optics
Show that all Fresnel half-period zones have the same area.
Optics
State the pre-requisites to observe diffraction of light and discuss at least three situations
where these conditions are met.
where these conditions are met.
Optics
State the limitations of Michelson inferometer. How are these overcome in Fabrey Perot
inferometer?
inferometer?
Optics
Show schematic representation of the experimental arrangement used to observe
Newton’s rings. Prove that the radius of a dark fringe is directly proportional to the
square root of the radius of curvature of the lens used.
Newton’s rings. Prove that the radius of a dark fringe is directly proportional to the
square root of the radius of curvature of the lens used.
Optics
Discuss use of Michelson inferometer to determine (i) refractive index of a thin plate, and
(ii) wavelength of monochromatic light.
(ii) wavelength of monochromatic light.
Optics
Draw a neat labelled diagram of human eye. Discuss how is image formed on the retina
processed by human brain?
processed by human brain?
Optics
What is double refraction? Discuss how it is used to obtain polarised light using a
uniaxial crystal
uniaxial crystal
Optics
Obtain an expression for energy carried by plane monochromatic e.m. waves as they
propagate
propagate
Optics
Discuss Einstein’s A and B coefficients and explain population inversion
