occurred because the speed of the light travelled in different medium was inconsistent (Encyclopædia Britannica‚ 2016). Referring to the following diagram‚ i is the angle of incidence of light (assumed in a vacuum)‚ and the line that is perpendicular to the surface of the medium. r is the angle of refraction which indicate the angle between the line of normal and the light ray in the medium (Encyclopædia Britannica‚ 2016). If a light ray travelled from a medium with a slower speed to a medium with
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‘O’-Level Physics 5059 Compulsory Definitions List V1 Term / Phrase Definition C1: Physical Quantities‚ Units and Measurement Scalar quantities Scalar quantities are physical quantities that have magnitude only. Vector quantities Vector quantities are physical quantities that have both magnitude and direction. C2: Kinematics Speed Speed is the rate of change of distance travelled. Velocity Velocity is the rate of change of displacement. Uniform acceleration Uniform acceleration is a constant rate
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different media so that the wavefront returns into the medium from which it originated. Common examples include the reflection of light‚ sound and water waves. The law of reflection says that for specular reflection the angle at which the wave is incident on the surface equals the angle at which it is reflected. Mirrors exhibit specular reflection. In acoustics‚ reflection causes echoes and is used in sonar. In geology‚ it is important in the study of seismic waves. Reflection is observed with surface
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propagation (perpendicular to the page). The transverse electric field can vibrate in any direction in the plane of the page with equal probability. (c)An equivalent representation of the unpolarized wave‚ as two waves linearly polarized at right angles to one another and with a random phase difference between them. MIT-MANIPAL BE-PHYSICS-POLARIZATION-2011-12 4 POLARIZING SHEETS Polaroid Polarizing material The polarizing direction is established during the manufacturing process. If E is
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sections lose lift simultaneously the aircraft will a) roll b) pitch nose up c) pitch nose down 2. Lift on a delta wing aircraft a) increases with an increased angle of incidence (angle of attack) b) decreases with an increase in angle of incidence (angle of attack c) does not change with a change in angle of incidence (angle of attack 3. On a straight wing aircraft‚ stall commences at the a) root on a high thickness ratio wing b) tip on a high thickness ratio wing c) tip on a low thickness
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the ball grips to the racket. This means a certain point of the ball stops‚ as the ball begins to turn away from the racket‚ as the ball naturally keeps spinning (due to inertia). Because this ball has gripped‚ the angle of reflection changes‚ becoming what is known as the throw angle. Hypothesis: Cleaning a table tennis racket and keeping it in a case will significantly preserve its playing characteristics (power and spin). Leaving a racket in the sun will severely decrease both spin and power
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latitudes ________ angle of incidence __________solar footprint Solar radiation more___________at ___________ latitudes _______ angle of incidence ____________ amount of radiation spread over a ____________area Atmosphere _____________ radiation Thickness varies with _______________ Albedo: 0–100% ________________________________ Average for Earth is ______% Angle of sun on sea surface Determines how much radiation is ___________ and ___________ As angle _______________‚ __________
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following statements are true for a simple ideal type of pendulum. 1. Provided that a pendulum vibrates in a vacuum‚ the period T is independent of the mass. 2. The period T is independent of the amplitude if the angle is relatively small‚ say 10° or less. For such small angles of displacement‚ the pendulum’s motion is simple harmonic. 3. The period is directly proportional to the square root of its length. With two pendulums of different lengths‚ the longer one will have a period longer
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cases the angle of incidence equals the angle of reflection at the point that the light ray strikes the surface. Light is also reflected when it is incident on a surface or interface between two different materials such as the surface between air and water‚ or glass and water. The definition of Refracted means when light goes from a fast medium to a slow medium to wear the light bends . The first example of
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holograms. 5-9 The attainable with thick di- also important for microimaging‚ practical to use holographic optical is 1-3 components (for and it may make example‚ gratings of optical systems. light diffraction at or near the 2909 Bragg angle 2910 THE BELL SYSTEM TECHNICAL JOURNAL‚ NOVEMBER 1969 which leads to efficient wavefront reconstruction. This is true for both transmission and reflection holograms‚ and both types are considered in this paper. The (volume) record of the holographic
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