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Ray Optics And Optical Instruments

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1
This video talks about the refraction through a prism. All the important geometrical relations between the various angle have been discussed. Angle of minimum deviation, and expressions of R.I. in terms of angle of prism A and angle of min. deviation D have been explained in detail.
REFRACTION THROUGH A PRISM
6 mins
2
Understanding refraction at spherical surface is an extended application of Snell's Law at a plane surface. Spherical surfaces are simply infinitely small plane surfaces equidistant from a common point,i.e. radius of curvature.
REFRACTION AT SPHERICAL SURFACE _ PART 01
4 mins
3
Angular Magnification and Magnifying Power of Optical Instruments:
It is quite easy to understand the working of optical instruments individually. However, it gets very difficult to visualise when we try to analyse how image formed by optical instruments interacts with our eyes. This video talks about angular magnification and magnifying power with respect to the human eye. The video makes it easier to visualise the significance of these mathematical quantities.
Angular Magnification and Magnifying Power of Optical Instruments
8 mins