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GEOMETRICAL OPTICS CHAP PAGE 1 Nature of Light
Reflection at Plane and Curved Surfaces
22 other sections not shown
achromatic amplitude angle of incidence angular aperture bands biprism bright called centre circular colours concave converging convex lens crown glass crystal diameter diffraction grating direction dispersive power displacement distance emergent equation Explain eye-piece film flint glass focal length focus given gives glass plate Hence illumination image formed incident light intensity interference fringes lenses lines magnification magnifying power maxima medium method microscope mirror monochromatic light Newton's rings Nicol normal object optic axis ordinary parallel beam particles passing path difference perpendicular phase difference placed plane polarised light position principal plane produced Punjab quartz radii radius of curvature reflecting surface refractive index resolving power rotation screen shown in Fig slit source of light spectra spherical aberration subtended telescope theory thickness thin tion velocity of light vibrations violet wave plate wave trains wave-front wavelength wavelength of light wavelets white light width zone plate