Use Snell’s law to calculate the angle of the refracted wave in the material. What angle does the refracted wave make with the reflected wave outside the material? So why is there no reflected wave (hint: think of the consequences of Maxwell’s equation #»∇ · #»E = 0)? Why is the Brewster’s angle dependent on the polarization? Use Fig 1 for help
Refer to Fig 1. What is the time t1 that the beam takes to travel from A to P? What is the time t2 for P to B? What is the total time to get from point A to point B? Minimize this time to get the relationship of the angles. What does that tell you physically, and why does this work?
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Use Snell’s law to calculate the angle of the refracted wave in the material. What angle...
Polarizers can be made based on the principle of Brewster angle. In Fig. 2, a light ray (with 50% s-polarized light and 50% p-polarized light) s incident from material 1 (n! 1.33) on a flat layer of material 2 that has an index of refraction n2-1.5. Beneath material 2 is material 3 with an index of refraction n3 - 1.0. The ray of light reflected into material I happens to be the linearly polarized light. (a) What is the angle...
I. (a) A uniform plane wave in air is incident on a lossless dielectric at an angle of 45 as shown in Fig.a. The transmitted wave propagates in a 30° direction with respect to the normal. The frequency is 300MHz. Find &2 in terms of g (b) A uniform plane wave is incident in a lossless dielectric with ε2 range of incident angles does transmission occur. 4e as shown in Fig . For what 2. e p
I. (a) A...
2. Use Snell's law (n, sin = n, sine,) to explain why , is greater than 0 in Fig. 2. Total Internal Reflection When light passes from a medium of large refractive index into one of small refractive index --- for example, from water to air --- the refracted ray bends away from the surface normal, as shown in Fig. 2. As the angle of incidence increases, the angle of refraction also increases. When the angle of incidence reaches a...
Assume now that you mistakenly filled the tank up to the blue line in the figure below. Using your ruler and protractor, draw the reflected and refracted rays for both incoming rays and read from the figure their angles (again, the red ray is 1 and the green one is 2) ang Note: the point of incidence is now where each ray crosses the blue line. The angles from the normal lines in those two points are those calculated in...
6) If a plane wave is reflected from the ocean floor with a 15 dB reduction in amplitude angle of incidence of 30°, what are the possible values of the specific fluid bottom material if it has a speed of sound of 1666m/s? at an acoustic impedance of the 7) Calculate the amplitude and phase of the reflection coefficient for a plane wave incident on a sediment with density 1200 kg/m', sound speed 1700 m/s at an angle of incidence...
water interface (the surface of the lake), it is partly
reflected back into the air and partly refracted
or transmitted into the water. This explains why on the surface of
a lake sometimes you see the reflection of the surrounding
landscape and other times the underwater vegetation.
These effects on light propagation occur because light travels at
different speeds depending on the medium. The index of refraction
of a material, denoted by n, gives an indication of the speed of...
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asurement of using the Sell remot Dispersion spectrum from a prism and me refracted blue surface normal refracted online acted on 82 Light Source cope) a, incidenta: Figure 2 Place a sheet of white paper on lab table and place light source (OS-8517) on the slit mask in the front of light source until only one light ray is shining. the shine surface of the rhombus downward to the table. The triangular end of the is used...
Partner: Date Name 11 Snell's Law Introduction When light passes from one material to another it is always bent away from its original path. This process is known as refraction and the change in direction depends on the change in optical density (or refractive index) of the two materials. A larger change in refractive index results in a larger change in angle between incoming and outgoing light beams. A light beam bends closer to the normal in the material with...
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Refraction, Wave speed and Snell's Law i. A pond with a total depth (water ice) of 3.00 m is covered by a transparent layer of ice 0.32 m thick. Find the time required for light to travel vertically from the top ofthe ice to the bottom of the pond. ice- o 32,n Wate 3-0.32 2.68 m 2. A beam of light is incident on the interface between glass (nr 32) and water (nr...
1. The magnetic field of a wave propagating through a certain nonmagnetic material is given by H-x30cos(10%-0. Sy) (mA/m) Find the following: (a) The direction of wave propagation. (b) The phase velocity (c) The wavelength in the material. (d) The relative permittivity of the material (e) The electric field phasor 2. A 60-MHz plane wave traveling in the -x-direction in dry soil with relative permittivity &4 has an electric field polarized along the z-direction. Assuming dry soil to be approximately...