A Textbook of Light for B. Sc. Students |
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Page 469
... quartz plate appears coloured . Fig . 21.1 . By rotating the analyser A , a position can be found when extinction of light is again produced , and if the quartz plate is rotated round its axis , it produces no change . This experiment ...
... quartz plate appears coloured . Fig . 21.1 . By rotating the analyser A , a position can be found when extinction of light is again produced , and if the quartz plate is rotated round its axis , it produces no change . This experiment ...
Page 486
... quartz cut perpendicular to the optic axis rotates the plane of polarisation by 20 ° . Find for what thickness will no light of this wavelength be transmitted when the quartz piece is interposed between a pair of parallel Nicols . Why ...
... quartz cut perpendicular to the optic axis rotates the plane of polarisation by 20 ° . Find for what thickness will no light of this wavelength be transmitted when the quartz piece is interposed between a pair of parallel Nicols . Why ...
Page 519
... quartz . The Cornu prism , Fig . 23-2 , which is generally employed for this purpose , consists of two right - angled quartz prisms of 30 ° each , one of which is right - hand- ed and the other left - handed , the two prisms being held ...
... quartz . The Cornu prism , Fig . 23-2 , which is generally employed for this purpose , consists of two right - angled quartz prisms of 30 ° each , one of which is right - hand- ed and the other left - handed , the two prisms being held ...
Contents
PART I | 1 |
CHAP | 2 |
Defects in Images Formed by a Lens Contd | 7 |
Copyright | |
14 other sections not shown
Common terms and phrases
achromatic air film amplitude angle of incidence angular aperture bands biprism bright called centre colours concave converging convex lens crown glass crystal dark diameter diffraction grating direction dispersive power distance emergent equation Explain eye-piece falls film flint glass focal length focus given glass plate half-period Hence illumination incident light intensity lenses lines M₂ magnification magnifying power maxima medium microscope mirror monochromatic light Newton's rings Nicol normal object optic axis ordinary parallel beam particles passing path difference perpendicular placed plane polarised light position principal plane prism produced Punjab quartz R₁ R₂ radius of curvature reflecting surface refractive index resolving power rotation screen shown in Fig slit source of light spectra spherical aberration subtended telescope thickness thin tion velocity of light vibrations violet wave trains wave-front wavelength wavelength of light wavelets white light width zone plate αλ