IB Physics SL C 3 11 Diffraction Around Bodies and Through Apertures Topic Practice

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Study C.3.11—Diffraction around bodies and through apertures conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

Question 1

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This question is about diffraction and resolution.

Monochromatic light is incident normally on a single narrow slit and gives rise to a diffraction pattern on a screen.

Figure for Question 1 — IB Physics SL

Two lamps emit light of wavelength 620 nm . The lights are observed through a circular aperture of diameter 1.5 mm from a distance of 850 m . Calculate the minimum distance between the lamps so that they are resolved.

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