[amp_mcq option1=”Archimedes’ Principle” option2=”Fresnel zone” option3=”Principle of Simultaneity” option4=”Pascal’s Principle” correct=”option2″]<\/p>\n
The correct answer is: B. Fresnel zone.<\/p>\n
Diffraction loss is a phenomenon that occurs when an electromagnetic wave passes through a narrow opening or around an obstacle. The wave is diffracted, or bent, around the obstacle, and this diffraction causes a loss of energy in the wave.<\/p>\n
The Fresnel zones are a way of calculating the amount of diffraction loss that will occur. The Fresnel zones are a series of concentric rings that are centered on the obstacle. The first Fresnel zone is the smallest ring, and the second Fresnel zone is the next largest ring, and so on. The amount of diffraction loss that occurs is proportional to the square of the number of Fresnel zones that the wave passes through.<\/p>\n
Archimedes’ Principle is a principle of physics that states that the buoyant force on an object is equal to the weight of the fluid that the object displaces.<\/p>\n
The Principle of Simultaneity is a principle of physics that states that two events that occur at the same time in one frame of reference will also occur at the same time in any other frame of reference that is moving at a constant velocity relative to the first frame.<\/p>\n
Pascal’s Principle is a principle of physics that states that pressure in a fluid is transmitted equally in all directions.<\/p>\n","protected":false},"excerpt":{"rendered":"
[amp_mcq option1=”Archimedes’ Principle” option2=”Fresnel zone” option3=”Principle of Simultaneity” option4=”Pascal’s Principle” correct=”option2″]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[199],"tags":[],"class_list":["post-43968","post","type-post","status-publish","format-standard","hentry","category-wireless-communication","no-featured-image-padding"],"yoast_head":"\n