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The effect of wavelength and the size of the gap on the pattern of diffraction of light
a) Wavelength b) Size of aperture/ gap
The wavelength of red light is greater than blue The size of the gap in the diagram (ii) smaller
light. than the size of the gap in the figure (i).
The effect diffraction is more obvious when the The effect diffraction is more obvious when the
wavelength is greater. size of gap is smaller.
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