The refractive index of a transparent plate with a parallelepiped of 30 cm in thickness is 3. How many cm of parallel shift does the I beam, which comes to the surface of the plate at an angle of 60 °, go through?
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The refractive index of a transparent plate with a parallelepiped of 30 cm in thickness is 3. How many cm of parallel shift does the I beam, which comes to the surface of the plate at an angle of 60 °, go through?
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- Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, and a laser beam is directed onto the sheets from above so that it strikes the interface at an angle of 26.6deg with the normal. The refracted beam in sheet 2 makes an angle of 31.4deg with the normal. The experiment is repeated with sheet 3 on top of sheet 2 and, with the same angle of incidence, the refracted beam makes an angle of 36.8deg with the normal. If the experiment is repeated again with sheet 1 on top of sheet 3, what is the expected angle of refraction in sheet 3? Assume the same angle of incidence.A laser beam with a total power of 22 watts is incident at a normal angle of incidence on a Lambertian surface. How much power reaches a detector with an area of 0.1 cm2 at an angle of 25 degrees located at a distance of 40 cm from where the beam strikes the surface? Please check closest answer. 0.525 mW 0.397 mW 0.247 mW 0.421 mWA ray of light crosses the boundary between some substance with n = 1.54 and air, going from the substance into air. If the angle of incidence is 29◦ what is the angle of refraction? Calculate to 1decimal.
- When a ray of light strikes a nonmetallic surface, some of the light is reflected and some is refracted. Brewster’s angle is the angle of incidence for which the reflected and refracted beams are 90 degrees apart. The significance of this angle is that it leads to a reflected ray which is completely polarized.(a) Sketch the incident, reflected, and refracted rays for a situation involving Brewster’s angle. (b) Compute Brewster’s angle for water. The the index of refraction of water is 1.33 and the trigonometric identity sin(90degrees −θ) = cosθA ray of light is incident on an air/water interface. The ray makes an angle of θ1 = 29 degrees with respect to the normal of the surface. The index of the air is n1 = 1 while water is n2 = 1.33. Write an expression for the reflection angle ψ, with respect to the surface.Three sheets of plastic have unknown indices of refraction.Sheet 1 is placed on top of sheet 2, and a laser beam is directed unto the sheets from above so that it strikes the interface at an angle of 26.5 degrees with the normal. The refracted beam in sheet 2 makes an angle of 31.7 degrees with the normal. The experiment is repeated with sheet 3 on top of sheet 2, and with the same angle of incidence, the refracted beam makes an angle of 36.7 degrees with the normal. If the experiment is repeated again with sheet 1 on top of sheet 3, determine the expected angle of refraction in sheet 3?. Assume the same angle of incidence.