A Textbook of Light for B. Sc. Students |
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Page 166
... magnifying power is , from Fig . 9.5 , M = 1 1 1 But = V U f = 23_PQI- -U F 2x PQ / F -U and v = -D 1 + - + - - ( + ) f F ( f + D ) u v F M = - f Di ( f + Di ) fDi D ... ( 9.4 ) Hence the magnifying power is slightly greater in this ...
... magnifying power is , from Fig . 9.5 , M = 1 1 1 But = V U f = 23_PQI- -U F 2x PQ / F -U and v = -D 1 + - + - - ( + ) f F ( f + D ) u v F M = - f Di ( f + Di ) fDi D ... ( 9.4 ) Hence the magnifying power is slightly greater in this ...
Page 202
... power and magnifying power of an optical instrument . Obtain an expression for the magnifying power of a com- pound microscope . ( Punjab , 1951 ) 18. Explain clearly the effects of spherical and chromatic aberrations in image formed by ...
... power and magnifying power of an optical instrument . Obtain an expression for the magnifying power of a com- pound microscope . ( Punjab , 1951 ) 18. Explain clearly the effects of spherical and chromatic aberrations in image formed by ...
Page 429
... power of a lens ? Calculate its resolving power . How does a knowledge of resolving power of lenses help in ... magnifying power and the resolving power of such an instrument ? 5. Find the least width of a grating having 800 lines per cm ...
... power of a lens ? Calculate its resolving power . How does a knowledge of resolving power of lenses help in ... magnifying power and the resolving power of such an instrument ? 5. Find the least width of a grating having 800 lines per cm ...
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