If a soap bubble is 120 nm thick, what wavelength is most strongly reflected at the center of the outer surface when illuminated normally by white light? Assume that the index refraction of air is na = 1 (the actual value is 1.0003) and the index refraction of soap is ns = 1.35.
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- The angle between the axes of two polarizing filters is 45.0º . By how much does the second filter reduce the intensity of the light coming through the first?O 23.8° A bichromatic source produces light having wavelengths in vacuum of 450 nm and 650 nm. The indices of refraction are 1.440 and 1.420, respectively. In one situation, a ray of the bichromatic light, in air, is incident upon the oil at an angle of incidence of 50.0°. The angle of dispersion between the two refracted rays in the oil is closest to which measure? O0.7° O 0.5° O 0.9° O 1.3° O1.1° nere to searchA ray of white light traveling through air enters a triangular prism that has an index of refraction of 1.517 for the red end of the spectrum and 1.532 for the violet end and an apex angle of 61.5 degrees. If the ray has an angle of incidence of 44.8 degrees with respect to the normal of the interface boundary, what is the angular separation between the red and violet ends of the spectrum upon exiting the prism? Measure this in degrees to 2 decimal places.
- A plastic light pipe has an index of refraction of 1.50. For total internal reflection, what is the minimum angle of incidence if the pipe is in (a) air and (b) water?The index of refraction for red light in water is 1.331, and that for blue light is 1.340. If a ray of white light enters the water at an angle of incidence of 78.40°, what are the underwater angles of refraction for the blue and red components of the light?Laser light is passed through a rod made out of a material with an index of refraction of 1.62, a length L = 45.0 cm, and square cross section of length h = 3.00 mm on a side as shown in the figure. If the light enters at the center of the rod with an angle of incidence in air of 0₁ = 49.7°, determine the number of total internal reflections before it emerges from the opposite end of the rod. 42.0 cm 3.10 mm
- What is the critical angle for light traveling in diamond (refractive index n=2.4) surounded by water (refractive index n=13)When red light in a vacuum is incident at the Brewster angle on a certain type of glass, the angle of refraction is 26.0°. (a) What is the Brewster angle?θB = °(b) What is the index of refraction of the glass?nglass =The figure below shows the path of a beam of light through several layers with different indices of refraction. (Assume n. 1.08.) n = 1.60 n = 1.40 n = 1.20 (a) If 01 36.0°, what is the angle 0, of the emerging beam? %D (b) What is the smallest incident angle 0, to have total internal reflection at the surface between the medium with n = 1.20 and the medium withn, = 1.08?
- A ray of white light traveling through air enters a triangular prism that has an index of refraction of 1.511 for the red end of the spectrum and 1.537 for the violet end and an apex angle of 64.8 degrees. If the ray has an angle of incidence of 46.3 degrees with respect to the normal of the interface boundary, what is the angular separation between the red and violet ends of the spectrum upon exiting the prism? Measure this in degrees to 2 decimal places.A certain kind of glass has an index of refraction of 1.660 for blue light of wavelength 420 nm and an index of 1.620 for red light of wavelength 690 nm. If a beam containing these two colors is incident at an angle of 30.0° on a piece of this glass, what is the angle between the two beams inside the glass?