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Angular width of centrl maximum in the F...

Angular width of centrl maximum in the Fraunhofer diffraction pattern of a slit is measured.The slit is iluminated by igth of wavelength `6,000 overset@A`.When the slit is illuminated by light of another wavelength,the angular width decreases y 30%.Calculate the wavelength of this light.
The same decrease in the angular width of centrl maximum is obtained ,when the original appartus is immersed in a liquid.Fin refractive index of the liquid.

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MODERN PUBLICATION-Diffraction of Light-EXERCISE
  1. Angular width of centrl maximum in the Fraunhofer diffraction pattern ...

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  2. What is diffraction of light?

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  3. What is meant by diffraction ?Explain diffraction at a single slit.

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  4. What is diffraction of light?

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  5. What is diffraction of light?

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  6. What is the condition for first minimum in case of diffraction due to ...

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  7. Discuss fully diffraction at a single slit and derive the relation fo...

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  8. Answer the following questions: In a single slit diffraction experimen...

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  9. What is dispersion of light? Explain it with a diagram. Also explain t...

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  10. Discuss fully diffraction at a single slit and derive the relation fo...

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  11. Discuss fully diffraction at a single slit and derive the relation fo...

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  12. Show that the central maximum in the single slit diffraction is twice ...

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  13. A parallel beam of monochromatic light falls normally on a single narr...

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  14. Discuss fully diffraction at a single slit and derive the relation fo...

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  15. Discuss the diffraction produced by a narrow slit which is illuminated...

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  16. Show that the central maximum in the single slit diffraction is twice ...

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  17. Give two points of differences between the phenomenon of interfernce a...

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  18. Draw the intensity pattern for single slit diffraction and double slit...

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  19. What is diffraction of light?

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  20. Give two points of differences between the phenomenon of interfernce a...

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  21. Define resolving power of an optical instrument. How does it depend on...

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