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n = 1.7 and (A beam of light) θ₀ = 17°. Calculate θᵣ, the reflected angle.
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- A student is looking at the antenna on the roof of a building. The student is at a horizontal distance of 85.0 m from the building and the angle his eyes make is 38.0°, as shown. The student's eyes are 1.60 m above the ground. At what height is the antenna above the ground (from base of the building to the top of antenna)? 38.0° 85.0 m O 61.5 m O 39.7 m O 68.0 m O 55.6 m O 44.3 mcompute the index of refraction for the substance where lightpropagates with speed v=2.7 • 10^8 m/s. (Speed of light in vacuum is = 3•10^8 m/s). Calculate to 2 decimal places. I got 1.10The critical angle from rock salt into air is 40.5o. What is the index of refraction for rock salt. (1.54)
- The speed (V) of light in any transparent material is less than the speed of light c in a vacuum: V (any transparent material) = c /n, c = 3 x 10 8 m/s, n = index of refraction of a transparent material What is the speed of light in alcohol? nalcohol = 1.36A light beam is traveling through an unknown substance. When it strikes a boundary between that substance and the air (nair 1), the angle of reflection is 33.0° and the angle of refraction is 47.0°. What is the index of refraction n of the substance? n =Light strikes the surface of a prism, n = as shown in the figure. 1.74, 450 If the prism is surrounded by a fluid, what is the maximum index of refraction of the fluid that will still cause total internal reflection within the prism?
- 13. 650 51° Fig N Figure 2 shows a ray of light x in glass refracted into air. If the speed of light in air is 3.0 x 105 ms'. Which of the following is the correct value for the speed of light in glass? A 2.0 x 10* ms- B 3.0 x 10° ms- 1.8 x 10° ms! D 340 msHelp me solve the following table. Angle of incidence (?i) is 65, angle uncertainty (??) is 1. I tried (1*2.4919*pi)/180 * ((1/tan65)+(1/tan22)) = ?n, but it said the answer was wrong, and i don't know how to continue from there. So, the answer cannot be 4.8838.ray of light strikes a flat block of glass at an incidence angle of ?1 = 38.6°. The glass is 2.00 cm thick and has an index of refraction that equals ng = 1.52. a.)What is the angle of refraction, ?2, that describes the light ray after it enters the glass from above? (Enter your answer in degrees to at least 2 decimal places.) b.) With what angle of incidence, ?3, does the ray approach the interface at the bottom of the glass? (Enter your answer in degrees to at least 2 decimal places.) c.) With what angle of refraction, ?4, does the ray emerge from the bottom of the glass? (Enter your answer in degrees to at least 1 decimal place.) d.) The distance d separates the twice-bent ray from the path it would have taken without the glass in the way. What is this distance (in cm)? e.) At what speed (in m/s) does the light travel within the glass? f.) How many nanoseconds does the light take to pass through the glass along the angled path shown here?
- Distances in space are often quoted in units of light years, the distance light travels in one year (365.25 days). How many meters is a light year? Provide the solution: x 1015 mThe index of refraction is defined to be n = A/B where: A = speed of light in material #1 %3D B = speed of light in material #2 OA = speed of light in vacuum B = speed of light in a material A = speed of light in a material B = speed of light in vacuum A = Square root of [(speed of light in vacuum)2 + (speed of light in a material)2] B = speed of light in a materialA light beam is shone into a mystery material. The light beam has an incident angle of 38 degrees and a refracted angle of 24 degrees. If n1 = 1.00, what is n2?