Waves -- Revision Guide
... When two waves of the same nature meet at a point, the resultant magnitude of oscillation at that point is the algebraic sum of oscillations caused by the individual waves. Interference of waves When two waves of the same nature, same polarization direction (for transverse ...
... When two waves of the same nature meet at a point, the resultant magnitude of oscillation at that point is the algebraic sum of oscillations caused by the individual waves. Interference of waves When two waves of the same nature, same polarization direction (for transverse ...
Optical Diffraction and Image Formation
... Expansion on the lecture’s material (this is optional reading material) If you imagine a slide projector’s slide in a parallel light path (and we don’t have any lens here at the moment), then you can imagine that directly behind the slide in a few millimeters distance you will only get the shadow im ...
... Expansion on the lecture’s material (this is optional reading material) If you imagine a slide projector’s slide in a parallel light path (and we don’t have any lens here at the moment), then you can imagine that directly behind the slide in a few millimeters distance you will only get the shadow im ...
Physical Optics and Diffraction
... big compared to the wavelength, but small compared to the distance to .Illumination comes from a distant wave source. Characterize aperture by a complex function , such that the wave just after passing through it On the aperture have ...
... big compared to the wavelength, but small compared to the distance to .Illumination comes from a distant wave source. Characterize aperture by a complex function , such that the wave just after passing through it On the aperture have ...
Second Semester Physics Review
... 2. A mass is suspended from a vertical spring. It is set into oscillation by pulling it down a short distance and then releasing it. At which one of the labeled points, during the subsequent motion, will the acceleration be zero? ...
... 2. A mass is suspended from a vertical spring. It is set into oscillation by pulling it down a short distance and then releasing it. At which one of the labeled points, during the subsequent motion, will the acceleration be zero? ...
9. Microwaves MW
... and maxima. The full expressions for the intensity variations are quite a bit more complicated. For the hypothetical case of infinitely narrow slits (there would actually be no intensity) the maxima would all be equally intense. The square root of the intensity distribution for the double slit with ...
... and maxima. The full expressions for the intensity variations are quite a bit more complicated. For the hypothetical case of infinitely narrow slits (there would actually be no intensity) the maxima would all be equally intense. The square root of the intensity distribution for the double slit with ...
Chapter 12. Wave Optics Optics can be divided into two categories: I
... Optics can be divided into two categories: I. Geometrical optics: describes processes that can be understood by ray tracing. This applies when the size of objects and lenses is much greater than the wavelength of light. Applies to: Optical instruments using mirrors and lenses. II. Wave optics: takes ...
... Optics can be divided into two categories: I. Geometrical optics: describes processes that can be understood by ray tracing. This applies when the size of objects and lenses is much greater than the wavelength of light. Applies to: Optical instruments using mirrors and lenses. II. Wave optics: takes ...
Statement of the competency PHYSICS NYC
... Apply image formation by thin lenses, the human eye, the optical instruments such as the simple magnifier, microscope and telescope. ...
... Apply image formation by thin lenses, the human eye, the optical instruments such as the simple magnifier, microscope and telescope. ...
n - LSU Physics
... A red light beam with wavelength λ=0.625µm travels through glass (n=1.46) a distance of 1mm. A second beam, parallel to the first one and originally in phase with it, travels the same distance through sapphire (n=1.77). • How many wavelengths are there of each beam inside the material? In glass, λg ...
... A red light beam with wavelength λ=0.625µm travels through glass (n=1.46) a distance of 1mm. A second beam, parallel to the first one and originally in phase with it, travels the same distance through sapphire (n=1.77). • How many wavelengths are there of each beam inside the material? In glass, λg ...
Optics and Optoelectronics
... 2. Light reflection and refraction at a spherical surfaces. Convex and concave mirrors. Formation of images by spherical mirrors. Thin lenses, focus, optical power. Aberrations of lenses. 3. Combinations of lenses, magnification. Optical instruments: human eye, magnifying glass, eyepiece, telescopes ...
... 2. Light reflection and refraction at a spherical surfaces. Convex and concave mirrors. Formation of images by spherical mirrors. Thin lenses, focus, optical power. Aberrations of lenses. 3. Combinations of lenses, magnification. Optical instruments: human eye, magnifying glass, eyepiece, telescopes ...
Chapter 20 (Answers are all A`s) 1. Find the displacement of a
... 4. A simple harmonic wave described by the equation y(t) = 0.54 cos(3.1x – 2.3t) reflects from both ends of a string that is clamped at each end, resulting in a standing wave that is the sum of y(t) and and its reflection. What is the amplitude of the standing wave at x = 0.22 m? The quantities x an ...
... 4. A simple harmonic wave described by the equation y(t) = 0.54 cos(3.1x – 2.3t) reflects from both ends of a string that is clamped at each end, resulting in a standing wave that is the sum of y(t) and and its reflection. What is the amplitude of the standing wave at x = 0.22 m? The quantities x an ...
Waves – Light and Sound Quiz 4
... longitudinal waves move in the ___________________ as the medium movement transverse waves move ___________________ to the medium movement amplitude ___________________ ___________________ unit: metre (m) frequency ______________________________________, unit: hertz (Hz) wavelength _________ ...
... longitudinal waves move in the ___________________ as the medium movement transverse waves move ___________________ to the medium movement amplitude ___________________ ___________________ unit: metre (m) frequency ______________________________________, unit: hertz (Hz) wavelength _________ ...
Properties of Light and Visual Function
... Strangely, the effect seems to be reduced, but not eliminated, when the head is cocked at a 45° angle. The effect seems to exist only at intermediate distances; if the eye is moved very close to or very far away from the figure, the phantom black dots do not appear. The illusion is known as the scin ...
... Strangely, the effect seems to be reduced, but not eliminated, when the head is cocked at a 45° angle. The effect seems to exist only at intermediate distances; if the eye is moved very close to or very far away from the figure, the phantom black dots do not appear. The illusion is known as the scin ...
Diffraction
Diffraction refers to various phenomena which occur when a wave encounters an obstacle or a slit. In classical physics, the diffraction phenomenon is described as the interference of waves according to the Huygens–Fresnel principle. These characteristic behaviors are exhibited when a wave encounters an obstacle or a slit that is comparable in size to its wavelength. Similar effects occur when a light wave travels through a medium with a varying refractive index, or when a sound wave travels through a medium with varying acoustic impedance. Diffraction occurs with all waves, including sound waves, water waves, and electromagnetic waves such as visible light, X-rays and radio waves.Since physical objects have wave-like properties (at the atomic level), diffraction also occurs with matter and can be studied according to the principles of quantum mechanics. Italian scientist Francesco Maria Grimaldi coined the word ""diffraction"" and was the first to record accurate observations of the phenomenon in 1660.While diffraction occurs whenever propagating waves encounter such changes, its effects are generally most pronounced for waves whose wavelength is roughly comparable to the dimensions of the diffracting object or slit. If the obstructing object provides multiple, closely spaced openings, a complex pattern of varying intensity can result. This is due to the addition, or interference, of different parts of a wave that travels to the observer by different paths, where different path lengths result in different phases (see diffraction grating and wave superposition). The formalism of diffraction can also describe the way in which waves of finite extent propagate in free space. For example, the expanding profile of a laser beam, the beam shape of a radar antenna and the field of view of an ultrasonic transducer can all be analyzed using diffraction equations.