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Represent diagrammatically how the incident planar wavefronts of wavelength pass through an…
Represent diagrammatically how the incident planar wavefronts of wavelength $\lambda$ pass through an aperture of size $d$, when $d$ is approximately equal to $\lambda$.
Draw: incident planar wavefronts passing through an aperture of size d approx equal to lambda, emerging as spherical wavefronts
Must show: incident planar wavefronts, aperture of size d, diffracted circular or spherical wavefronts emerging
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From ISC 2025 Specimen Physics Paper 1, question 1(B)(iv).