Final answer:
The question seems to be about the conjugate-beam method in structural engineering, but the associated information pertains to physics concepts like diffraction and interference. To address the engineering problem, knowledge of beam deflections and mechanics of materials is essential.
Step-by-step explanation:
The question provided appears to be related to the analysis of beam deflections using the conjugate-beam method. However, the provided information relates to various concepts in physics, such as magnetic field strength, electron beam interference in a Davisson-Germer experiment, intensity of beams, and diffraction grating problems. To accurately determine the maximum deflection in a beam using the conjugate-beam method, technical knowledge of structural engineering and mechanics of materials is required. This method involves creating a hypothetical 'conjugate beam' with modified supports that correspond to the real beam's loading conditions and then applying the moments from the real beam as loads on the conjugate beam. The resultant deflection of the conjugate beam corresponds to the slope and deflection of the actual beam.
For questions related to the intensity of a beam, the energy delivered on an area, and diffraction grating maxima like finding the angle for a third-order maximum, principles of physics such as optics and quantum mechanics are employed. These require a different analytical approach than the conjugate-beam method.