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What evidence can you cite to support the claim that the
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- The index of refraction for water is about 43. What happens as a beam of light travels from air into water? (a) Its speed increases to 43c, and its frequency decreases. (b) Its speed decreases to 34c, and its wavelength decreases by a factor of 34. (c) Its speed decreases to 34c, and its wavelength increases by a factor of 43. (d) Its speed and frequency remain the same. (e) Its speed decreases to 34c, and its frequency increases.A beam of light comes from air and makes an angle of incidence of 25 degrees. If it travels into a glass window (n=1.5), what is the angle of refraction?Walking by a lake, you notice that a light ray from the sun reflects from the lake surface back to you. If the angle of incidence is 24°, what is the angle between the reflected ray and the incident ray at the water surface?
- A ray of light crosses the boundary between some substance with n = 1.6 and air, going from the substance into air. If the angle of incidence is 29 what is the angle of refraction? Calculate to 1decimal.The diagram below shows the passage of a ray of light from air into a substance X. What is the index of refraction of X? 50° air 70° 0.53 3.01 1.88 1.21 0.82The index of refraction of bone is n = 1.55. What is the speed of light in bone?
- Physics A beam of light strikes the surface of glass (n = 1.46) at an angle of 70 degrees with respect to the normal. Find the angle of refraction inside the glass. Take the index of refraction of air n1 = 1.Let v be the wave's speed, λ its wavelength, and f its frequency. These quantities are related via the equation v=λf. Note that, if the wave speed decreases, the wavelength must also decrease for the frequency to remain constant. What is the wavelength λ of light in glass, if its wavelength in air is λ0, its speed in air is c, and its speed in the glass is v? Express your answer in terms of λ0, c, and v. If light strikes the air/glass interface at an angle 32.0 degrees to the normal, what is the angle of reflection, θr?A light ray traveling in air strikes the surface of a slab of glass at an angle of incidence of 80°. Part of the light is reflected and part is refracted. Find the angles the reflected and refracted rays make with respect to the normal to the air-glass interface. (Enter your answers in degrees. Use any necessary data found in the figure below.) 45 40 35 30 25 20 15 10 5 10 20 30 40 50 60 70 80 90 Angle in air (°) Oreflected O refracted = Angle in glass ()
- Is the smallest angle of incidence at which all light striking the surface is totally internally reflected.A concave mirror has a focal length of 15 cm. What is the magnification if the object's distance is 105 cm?A healthy person has a body temperature of 98.6 oF. Use the properties of blackbody radiation to work out the precise wavelength of the peak radiation. (Hint: Convert Fahrenheit degrees into Kelvin (absolute) degrees.)The speed of light in a certain medium is 2.2 × 10 m/s. What is the index of refraction of this medium?