MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A beam of light containing red (660 nm) and violet (410 nm) wavelengths travels from air, through a flat piece of crown glass 2.96 cm thick, and then back to air. (a) If the beam has an angle of incidence of 26.0° in air, determine the angle at which the two colors of light emerge from the crown glass. The index of refraction respectively for red and violet light in crown glass is 1.512 and 1.530. (Enter a number to three decimal places.) red violet (b) Determine the distance separating the red and violet light as it emerges from the glass. cm
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- A light ray enters a rectangular block of plastic at an angle 0, = 47.8° and emerges at an angle 0, = 73.2°, as shown in the figure below. (a) Determine the index of refraction of the plastic. (b) If the light ray enters the plastic at a point L = 50.0 cm from the bottom edge, how long does it take the light ray to travel through the plastic? nsA plastic light pipe has an index of refraction of 1.65. For total internal reflection, what is the minimum angle of incidence if the pipe is in the following media? (a) air °(b) water °Two light beams are incident normal to one surface of a triangular prism with refractive index n = 1.4 surrounded by air. What is the value of the angle between the two emerging beams, shown as a in the figure? d a 90° d 45° O 70.4° 73.7° O 61.8° 60.0° O 65.8° ..... ......
- If light in air with a wavelength of 760 nm is incident upon a piece of quartz (n = 1.54) at an angle of 60°.(A) What is the angle of refraction? (B) what is the speed and frequency of this light in the quartz?The index of refraction for violet light in silica flint glass is 1.66 and that for red light is 1.62. What is the angular dispersion of visible light passing through an equilateral prism of apex angle 60.0° if the angle of incidence is 54.0°7 (See figure. The index of refraction for air is 1.00.) 24 X Your response differs from the correct answer by more than 10%. Double check your calculations." Visible light Need Help? Read I Angular spread Deviation of red light ScreenA ray of light in air is incident at an angle of 25.0° on a glass slide with index of refraction 1.46. (a) At what angle is the ray refracted? from the normal (b) If the wavelength of the light in vacuum is 535 nm, find its wavelength in the glass. nm
- Red light is incident in air on a 30° -60° - 90 ° prism as shown. The incident beam is directed at an angle of ₁ = 40.20 with respect to the horizontal and enters the prism at a height h = 20 cm above the base. The beam leaves the prism to the air at a distance d = 54.2 along the base as shown. 45.66 1.36 30⁰ 1) What is 2, the angle the beam in the prism makes with the horizontal axis? 71.9 d degrees Submit 2) What is n, the index of refraction of the prism for red light? dviolet d Submit Submit 02 3) What is 3, the angle the transmitted beam makes with the horizontal axis? h degrees Submit 03 degrees Submit (+) 4) What is 41,max, the maximum value of 1 for which the incident beam experiences total internal reflection at the horizontal face of the prism? degrees Submit + + 5) The red beam is now replaced by a violet beam that is incident at the same angle 1 and same height h. The prism has an index of refraction nviolet = 1.46 for violet light. Compare dviolet, the exit distance for…A ray of 610-nm light goes from air into fused quartz at an incident angle of 55.0° . At what incident angle must 470 nm light enter flint glass to have the same angle of refraction?A laser beam is incident at an angle of 30.00to the vertical onto a solution of blood plasma in water. If the beam is refracted to 19.240 to the vertical: What is the index of refraction of the blood plasma solution? Suppose the light is red, with wavelength 632.8 nm in a vacuum. Find: Its wavelength. Its frequency. Its speed in the solution. The critical angle for the blood plasma solution when surrounded by air
- 1. A flashlight held 1.3 m above the surface of a water tank shines a beam of light on the water (index of refraction n 1.33). The light hits the water 2.7 m away from the edge of the tank, where the flashlight is held. The water tank is 2.1 m deep. (a) What is the incident angle relative to the normal? (b) What is the transmitted angle relative to the normal? (c) Where does the light ray hit the bottom of the water tank, mea- sured from the edge of the tank where the flashlight is held? light ray 2.7 m d=? = water tank 1.3 m 2.1 mThe index of refraction for violet light in silica flint glass is 1.67 and that for red light is 1.62 . What is the angular dispersion of visible light passing through an equilateral prism of apex angle 60.0o if the angle of incidence is 47.00o?A light beam containing red and violet wavelengths is incident on a slab of quartz at an angle of incidence of 51.00°. The index of refraction of quartz is 1.455 at 660 nm (red light), and its index of refraction is 1.468 at 410 nm (violet light). Find the dispersion of the slab, which is defined as the difference in the angles of refraction for the two wavelengths. °