The refractive index of medium A is 1.5, and the refractive index of medium B is...
The refractive index of medium A is 1.5, and the refractive index of medium B is 2.25. As light passes from medium A into medium B _____. a. It bends towards the normal b. nothing changes. c. It bends away from the normal d. it gets reflected at the same angle it came in at
Homework Answers
Answer : (a) It bends towards the normal.
When the light travels from rarer medium to denser medium : It bends always towards the normal.
Here, Denser medium refers to the medium with greater refractive index and rarer medium means the medium with lesser refractive ibdex.
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The refractive index of medium A is 1.5, and the refractive
index of medium B is...
3. In Fig. 2, if we increase the index n, but keepn, <n,, should the value...
3. In Fig. 2, if we increase the index n, but keepn, <n,, should the value of increase or decrease? Give your reasoning. Total Internal Reflection When light passes from a medium of large refractive index into one of small refractive index --- for example, from water to air --- the refracted ray bends away from the surface normal, as shown in Fig. 2. As the angle of incidence increases, the angle of refraction also increases. When the angle of...
2. Use Snell's law (n, sin = n, sine,) to explain why , is greater than...
2. Use Snell's law (n, sin = n, sine,) to explain why , is greater than 0 in Fig. 2. Total Internal Reflection When light passes from a medium of large refractive index into one of small refractive index --- for example, from water to air --- the refracted ray bends away from the surface normal, as shown in Fig. 2. As the angle of incidence increases, the angle of refraction also increases. When the angle of incidence reaches a...
Optical fiber has a core with refractive index 1.5, a cladding with refractive index 1.46 and...
Optical fiber has a core with refractive index 1.5, a cladding with refractive index 1.46 and a buffer coating with refractive index 1.4. What is the angle of total internal reflection in this fiber, if light is propagating in the core?
2. A block of plastic with refractive index np-1.68 is immersed in oil (no-1.516). Randomly polarized...
2. A block of plastic with refractive index np-1.68 is immersed in oil (no-1.516). Randomly polarized light (ie, 50% s-polarization and 50% p-polarization) is incident from the oil towards the plastic at an angle of 65" to the normal. a) What percentage of the p-polarized component of the light is reflected off the plastic? b) What percentage of the total incident power of the light is transmitted into the block? c) What is the ratio of the s-polarized reflected power...
Question: In this problem you will be considering Brewster's angle. Light travelling through a medium with...
Question: In this problem you will be considering Brewster's angle. Light travelling through a medium with refractive index ni = 1.09 is incident at an angle lº to the normal on a medium with refractive index n2 = 1.45. A n2 Figure 1. Polarised light travelling through a medium with refractive index ny is incident at an angle 0 (to the normal) on a block with refractive index n2. Part 1) What is Brewster's angle OB in this case? OB=...
(1) Assume that light is traveling from one layer of silica whose refractive index is 1.471...
(1) Assume that light is traveling from one layer of silica whose refractive index is 1.471 (Core) to another layer of silica whose refractive index is 1.445(Cladding). (a) Find the critical propagation angles (b) Find the acceptance angle (c) The refraction take place from the normal or to the normal? (2) If a light beam is oscillating at 0.213 Ghz (a) What is the index of refraction of the optical medium where the light bean is traveling.
(a) Briefly explain what is meant by the following terms: refraction, refractive index, angle of incidence,...
(a) Briefly explain what is meant by the following terms: refraction, refractive index, angle of incidence, angle of refraction. [4 marks] (b) The drawing shows four different situations in which a light ray is traveling from one medium into another. In some of the cases, the refraction is not shown correctly. For cases (i), (ii), and (iii), the angle of incidence is 55°; for case (iv), the angle of incidence is 0°. Identify which cases are incorrectly drawn and determine...
In the optical fiber below, the core has a refractive index equal to 1.5
In the optical fiber below, the core has a refractive index equal to 1.5 and a cladding of refractive index of 1.4. a) What is the speed of light inside the core? b) What is the critical angle at the core-cladding interface? c) What is the maximum angle "t" that the rays leaving the source of light should make with the axis of the fiber so that total internal reflections takes place at the core-cladding interface?
help Light is travelling from a medium with an index of refraction of 1.5 into another.!...
help
Light is travelling from a medium with an index of refraction of 1.5 into another.! unknown, medium. The critical angle for total internal reflection is 60 degrees (with respect to the normal). What is the index of refraction of the unknown medium? 1.73 0.57 4.92 1.29
A thin film of ??????2 has refractive index n = 1.38 and it is deposited on...
A thin film of ??????2 has refractive index n = 1.38 and it is deposited on glass as an anti-reflective layer of light with wavelength 580nm that falls in the normal direction towards the film. What wavelength is minimally reflected when the light falls at 45 ° towards the film?
3. In Fig. 2, if we increase the index n, but keepn, <n,, should the value of increase or decrease? Give your reasoning. Total Internal Reflection When light passes from a medium of large refractive index into one of small refractive index --- for example, from water to air --- the refracted ray bends away from the surface normal, as shown in Fig. 2. As the angle of incidence increases, the angle of refraction also increases. When the angle of...
2. Use Snell's law (n, sin = n, sine,) to explain why , is greater than 0 in Fig. 2. Total Internal Reflection When light passes from a medium of large refractive index into one of small refractive index --- for example, from water to air --- the refracted ray bends away from the surface normal, as shown in Fig. 2. As the angle of incidence increases, the angle of refraction also increases. When the angle of incidence reaches a...
2. A block of plastic with refractive index np-1.68 is immersed in oil (no-1.516). Randomly polarized light (ie, 50% s-polarization and 50% p-polarization) is incident from the oil towards the plastic at an angle of 65" to the normal. a) What percentage of the p-polarized component of the light is reflected off the plastic? b) What percentage of the total incident power of the light is transmitted into the block? c) What is the ratio of the s-polarized reflected power...
Question: In this problem you will be considering Brewster's angle. Light travelling through a medium with refractive index ni = 1.09 is incident at an angle lº to the normal on a medium with refractive index n2 = 1.45. A n2 Figure 1. Polarised light travelling through a medium with refractive index ny is incident at an angle 0 (to the normal) on a block with refractive index n2. Part 1) What is Brewster's angle OB in this case? OB=...
(1) Assume that light is traveling from one layer of silica whose refractive index is 1.471 (Core) to another layer of silica whose refractive index is 1.445(Cladding). (a) Find the critical propagation angles (b) Find the acceptance angle (c) The refraction take place from the normal or to the normal? (2) If a light beam is oscillating at 0.213 Ghz (a) What is the index of refraction of the optical medium where the light bean is traveling.
(a) Briefly explain what is meant by the following terms: refraction, refractive index, angle of incidence, angle of refraction. [4 marks] (b) The drawing shows four different situations in which a light ray is traveling from one medium into another. In some of the cases, the refraction is not shown correctly. For cases (i), (ii), and (iii), the angle of incidence is 55°; for case (iv), the angle of incidence is 0°. Identify which cases are incorrectly drawn and determine...
help
Light is travelling from a medium with an index of refraction of 1.5 into another.! unknown, medium. The critical angle for total internal reflection is 60 degrees (with respect to the normal). What is the index of refraction of the unknown medium? 1.73 0.57 4.92 1.29
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