{"knowledge_schema": {"broad_category": "Physics \u2192 Optics \u2192 Diffraction", "refinement": "This problem deals with the diffraction pattern produced by a circular aperture when illuminated by monochromatic light.", "specific_scope": "The focus is on determining the angular position of intensity maxima in the far field (Fraunhofer diffraction) for a circular aperture.", "goal": "Calculate the angular position of the second intensity maximum in the diffraction pattern."}, "summary": "This problem involves the study of diffraction patterns created by a circular aperture when monochromatic light passes through it. In the far field, the angular positions of intensity maxima can be determined using the principles of diffraction. The goal is to find the angular position of the second intensity maximum, which is calculated based on the wavelength of light and the radius of the aperture. The correct answer is 1.63 \u03bb / R, indicating the position of the second maximum in the diffraction pattern."}