A single slit diffraction pattern is produced on a screen using a laser. Describe how the pattern would change if light of a longer wavelength was used.
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Card 57
Front
State two ways in which the appearance of the fringes would change if the slit was made narrower.
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Card 58
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The speed of light is given by c = f λ. State how each of these quantities will change, if at all, when light travels from air to glass.
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Card 59
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Explain the difference between a progressive transverse wave and a stationary transverse wave in terms of amplitude. (2)
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Card 60
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Explain the difference between a progressive transverse wave and a stationary transverse wave in terms of phase difference between two particles. (2)
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Card 61
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Explain the differences between a progressive transverse wave and a stationary transverse wave in terms of frequency. (2)
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Card 62
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Give two reasons why optical fibres used for communications have a cladding.
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Card 63
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What is multipath dispersion?
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Card 64
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Give two reasons why a diffraction grating arrangement is more suitable for the accurate measurement of the wavelength of light that the two-slit interference arrangement.
