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A: Write the formula for Brewster’s angle.
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- A light beam is traveling through an unknown substance. When it’s strikes a boundary between the substance in the air (nair=1), the angle reflection is 34.0° and the angle of refraction is 45.0°. What is the index of refraction n of the substance? n=Light is traveling through air and hits an iceberg (n = 1.31) at an incident angle of 30.0 ̊. What is the angle of refraction?Q.1 A light ray is reflected from a mirror with an angle 60.0° to the normal. What was the angle of incidence? Q.2 Light passes through a transparent substance at a speed of 2 ×108 m/s. What is the index of refraction of the substance? Q.3 The wavelength of a monochromatic light source is measured to be 5.5 × 10-8 m in a diffraction experiment. (a) What is the frequency? (b) What is the energy of a photon of this light?
- A light ray in glass (refractive index 1.57) arrives at the glass-water interface at an angle of 0 = 48° with the normal. The index of refraction of water is 1.33. What is the angle of refraction @ that a refracted ray makes with the normal ? water glass O 42° O 56° O 61° O 20°A ray of light in air enters a 1.00-cm thick pane of glass at a 50° angle to the surface normal. The sides of the glass are parallel to each other. The light emerges from the other side displaced 0.615 cm from the place it would have emerged if it did not refract. What is the index of refraction of the glass? O 1.94 O 1.14 O 1.59 O 1.41 O 1.53 O 1.35 O 1.28 O 1.72 O 1.65 O 1.4613. 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 ms
- The thickness of a flint glass plate is 9 cm thick. The index of refraction is 1.45. A ray of incident light strikes the upper surface at angle = 49 degrees, with respect to the normal direction. Some of the light passes through the glass and exits through the lower surface. What is the lateral displacement of the ray where it emerges from the lower surface? (in cm) OA: 2.609 OB: 3.784 OC: 5.486 OD: 7.955 OE: 11.535 OF: 16.725 |OG: 24.251 OH: 35.164a) A ray of light is traveling in a glass cube that is totally immersed in water. You find that if the ray is incident on the glass-water interface at an angle to the normal greater than 48.7o, no light is refracted into the water. What is the refractive index of glass? The refractive index of water is 1.33.K A light ray with a wavelength of 589 nanometers (produced by a sodium lamp) traveling through air makes an angle of = to find the angle of refraction, V2 sin 0₁ V₁ y incidence of 55° on a smooth, flat slab of dense flint glass. Use Snell's Law, sin 02 where the index of refraction is 1.66. ... The angle of refraction is approximately degrees. (Type an integer or decimal rounded to two decimal places as needed.)
- A 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 27.0° and the angle of refraction is 43.0°. What is the index of refraction n of the substance? n =Light goes from air (n = 1.0003) to glass (n = 1.5) with an incident angle of 25 degrees. What is the angle of refraction?A ray of light consisting of blue light (wavelength 480 nm) and red light (wavelength 670 nm) is incident on a thick piece of glass at 80°. What is the angular separation between the refracted red and refracted blue beams while they are in the glass? (The respective indices of refraction for the blue light and the red light are 1.4636 and 1.4561.) O 0.27° 0.33° O 0.36° O 0.46° O 0.54°