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Fresnel distance is the………….before its d...

Fresnel distance is the………….before its deviation from…………..becomes…………. .

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minimum distance travelled by a beam of light , straight line path , becomes significant//noticeable.
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PRADEEP-OPTICS-Exercise
  1. The width of central maximum is the…………….between……….on either side of…...

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  2. Angular width of central maximum in diffraction at a single slit is………...

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  3. Fresnel distance is the………….before its deviation from…………..becomes…………...

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  4. Resolvingpower of an optical instrument is the ability of the instrume...

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  5. The…………..distance between two objects which………….is called……………….of the...

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  6. When an unpolarised light is polarized, then the intensity of light of...

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  7. When angles between principal sections of two nicols are 0^(@) and 180...

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  8. The slit of width d is illuminated by light of wavelength 5000 Å. If F...

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  9. For what distance is ray optics a good approximation when the aperture...

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  10. For what distance is ray optics a good approximation when the aperture...

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  11. A parallel beam of light of wavelenght 600 nm is incident normally on ...

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  12. Light of lambda = 550 nm is incident as parallel beam on a slit of wid...

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  13. Light of wavelength 500 nm falls from a distant source on a slit 0.5 m...

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  14. A slit of width d is illuminated by a monochromatic light of waveleng...

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  15. Light of wavelength 600 nm is incident normally on a slit of width 3 m...

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  16. A parallel beam of light of 600 nm falls on a narrow slit and the resu...

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  17. Red light of wavelength 6500 Å from a distant source falls on a slit ...

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  18. A plane wavefront (lambda=6xx10^-7m) falls on a slit 0.4m wide. A conv...

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  19. A slit of width 'a' is illuminated by red light of wavelenght 6500 Å. ...

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  20. A 0.02 cm wide slit is illuminated at normal incidence by light having...

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