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Answer the following: (a) What is a wa...

Answer the following:
(a) What is a wave front? How does it propagate? Using Huygens' principle, explain reflection of a plane wavefront from a surface and verify the laws of reflection.
(b) A parallel beam of light of wavelength `500 nm` falls on a narrow slit and the resulting diffraction pattern is obtained on a screen `1 m` away. If the first minimum is formed at a distance of `2.5 mm` from the centre of screen, find the
(i) width of the slit, and
(ii) distance of first secondary maximum from the centre of the screen.

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RESONANCE ENGLISH-WAVE OPTICS-Exercise-3 (Part-3)
  1. (a) What is plane polarised light? Two polaroid sare placed at 90^(@)...

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  2. What is meant by a linearly polarised light? Which type of waves can b...

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  3. How is a wavefront defined? Using Huygen's construction , draw a figu...

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  4. (a) Light, from a sodium lamp, is passed through two polaroid sheets P...

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  5. In a Young's double slit experiment , the slits are Kept 2mm apart and...

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  6. In Young's double slit experiment ,momochromatic light of wavelength 6...

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  7. In a singleslit diffraction experiment, when a tiny circular obstacle ...

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  8. The diagram, given below, shows the refracton of a plane wavefront, in...

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  9. How would the angular separation of interference fringes in Young's do...

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  10. Two polaroid A and B are set in crossed positions. A third polaroid C ...

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  11. In Young's double slit experiment , the two slits 0.20 mm apart are il...

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  12. State Huygens' principle of diffraction of light.

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  13. State the importance of coherent sources in the phenomenon of interfer...

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  14. Answer the following: (a) What is a wave front? How does it propagat...

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  15. (a) Define a wavefront. Use Huygen' principle to shown diagrammaticall...

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  16. (a) Why are coherent sources necessary to produce a sustained interfer...

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  17. Answer the following: (a) In Young's double slit experiment, derive ...

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  18. Which of the following waves can be polarized (i) Heat waves (ii) Soun...

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  19. Two wavelengths of sodium light 590 nm and 596 nm are used, in turn, ...

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  20. The ratio of the intensities at minima to maxima in Young's double sli...

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