Diffraction pattern of a single slit con...

Diffraction pattern of a single slit consists of a central bright band which is

wide, and is flanked by alternate dark and bright bands of decreasing intensity

narrow, and is flanked by alternate dark and dright bands of equal intensity

wide, and is flanked by alternate dark and bright bands of equal intensity

narrow, and is flanked by alternate-dark and bright bands of decreasing intensity

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(a) Derive the relation a sin theta=lambda for the first minimum of the diffraction pattern produced due to a single slit of width ‘a’ using light of wavelength lambda . (b) State with reason, how the linear width of central maximum will be affected if (i) monochromatic yellow light is replaced with red light, and (ii) distance between the slit and the screen is increased. (c) Using the monochromatic light of same wavelength in the experimental set-up of the diffraction pattern as well as in the interference pattern where the slit separation is 1 mm, 10 interference fringes are found to be within the central maximum of the diffraction pattern. Determine the width of the single slit, if the screen is kept at the same distance from the slit in the two cases.

CP SINGH-WAVE NATURE OF LIGHT-EXERCISES

Diffraction effects are easier to notice in the case of sound waves th...
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A parallel monochromatic beam of light is incident normally on a narro...
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Diffraction pattern of a single slit consists of a central bright band...
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To observe diffraction, the size of the obstacle
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A diffraction is obtained by using a beam of red light. What will hap...
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Yellow light is used in a single slit diffraction experiment with slit...
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A slit of width a illuminated by red light of wavelength 6500 Å. The f...
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A single slit of width 0.20 mm is illuminated with light of wavelength...
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Light of wavelength 6328 Å is incident normally on a slit having a wid...
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A beam of light of wavelength 600 nm from a distant source falls on...
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The amplitude modulated (AM) radio wave bends apreciably round the co...
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The fringe pattern observed on Young's double-slit experiment is
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Which of the following properties show that light is a transverse wave...
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Longitudinal waves do not exhibit
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Through which character we can distiguish the light waves from sound w...
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Which of the following cannot be polarised?
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In the propagation of electromagnetic waves the angle between the dire...
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In case of linearly polarised light, the magnitude of the electric fie...
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When a beam of light is used to determine the position of an object, t...
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Which of the following diagrams represent the veriation of electric fi...
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