Is Light Reflected or Refracted?When light propagates through two adjacent materials that have different optical properties,some interesting phenomena occur at the interface separating the two materials. Forexample, consider a ray of light that travels from air into the water of a lake. As the raystrikes the air-water interface (the surface of the lake), it is partly reflected back into the airand partly refracted or transmitted into the water. This explains why on the surface of a lakesometimes you see the reflection of the surrounding landscape and other times theunderwater vegetation.These effects on light propagation occur because light travels at different speedsdepending on the medium. The index of refraction of a material, denoted by n. gives anindication of the speed of light in the material. It is defined as the ratio of the speed of lighte in vacuum to the speed in the material, orFigureincident.rayinterfacenormaln=등.62reflectedrayrefractedray▾Review | ConstantsNow consider a ray of light that propagates from water (n = 1.33) to air (n = 1). If the incident ray strikes the water-air interface at an angle 0, 0, which of the following relations regarding the angle of refraction,8₂, is correct?▸ View Available Hint(s)8₂ 0₁O 0₂ 0₁O 02₂ 0₂O 0₁62 = 01SubmitPart E4 of 22 Consider a ray of light that propagates from air (n = 1) to any one of the materials listed below. Assuming that the ray strikes the interface with any of the listed materials always at the same angle 8₁, in whichmaterial will the direction of propagation of the ray change the most due to refraction?▸ View Available Hint(s)ice (n = 1.309)O water (n = 1.333)O turpentine (n = 1.472)Oglass (n = 1.523)O diamond (2=2.417)P Pearson Is Light Reflected or Refracted?When light propagates through two adjacent materials that have different optical properties,some interesting phenomena occur at the interface separating the two materials. Forexample, consider a ray of light that travels from air into the water of a lake. As the raystrikes the air-water interface (the surface of the lake), it is partly reflected back into the airand partly refracted or transmitted into the water. This explains why on the surface of a lakesometimes you see the reflection of the surrounding landscape and other times theunderwater vegetation.These effects on light propagation occur because light travels at different speedsdepending on the medium. The index of refraction of a material, denoted by n. gives anindication of the speed of light in the material. It is defined as the ratio of the speed of lighte in vacuum to the speed in the material, orn = {Figureincidentrayinterface.€₂reflectedrayrefracted▾When light propagates from a material with a given index of refraction into a material with a smaller index of refraction, the speed of the light▸ View Available Hint(s)Oincreases.O decreases.O remains constant.SubmitPart BWhat is the minimum value that the index of refraction can have?▸ View Available Hint(s)O 0O +1O -1Obetween 0 and 1Submit4 of 22An example of reflection and refraction of light is shown in the figure. (Figure 1)An incident ray of light travelling in the upper material strikes the interface with the lower material. The reflected ray travels back in theupper material, while the refracted ray passes into the lower material. Experimental studies have shown that the incident, reflected, and refracted rays and the normal to the interface all lie in the same plane. Moreover,the angle that the reflected ray makes with the normal to the interface, called the angle of reflection, is always equal to the angle of incidence. (Both of these angles are measured between the light ray and the normal tothe interface separating the two materials.) This is known as the law of reflection.This is the law of refraction, also known as Snell's law.Review | ConstantsThe direction of propagation of the refracted ray, instead, is given by the angle that the refracted ray makes with the normal to the interface, which is called the angle of refraction. The angle of refraction depends on theangle of incidence and the indices of refraction of the two materials. In particular, if we let my be the index of refraction of the upper material and the index of refraction of the lower material, then the angle ofincidence, 8₁, and the angle of refraction, 2, satisfy the relationn₁ sin ₁ = n₂ sin 02.

Question

Is Light Reflected or Refracted?When light propagates through two adjacent materials that have different optical properties,some interesting phenomena occur at the interface separating the two materials. Forexample, consider a ray of light that travels from air into the water of a lake. As the raystrikes the air-water interface (the surface of the lake), it is partly reflected back into the airand partly refracted or transmitted into the water. This explains why on the surface of a lakesometimes you see the reflection of the surrounding landscape and other times theunderwater vegetation.These effects on light propagation occur because light travels at different speedsdepending on the medium. The index of refraction of a material, denoted by n. gives anindication of the speed of light in the material. It is defined as the ratio of the speed of lighte in vacuum to the speed in the material, orFigureincident.rayinterfacenormaln=등.62reflectedrayrefractedray< 1 of 1 >▾Review | ConstantsNow consider a ray of light that propagates from water (n = 1.33) to air (n = 1). If the incident ray strikes the water-air interface at an angle 0, 0, which of the following relations regarding the angle of refraction,8₂, is correct?▸ View Available Hint(s)8₂ > 0₁O 0₂ <0₂08₂=0₁Submit▾ Part DConsider a ray of light that propagates from water (n = 1.33) to glass (n = 1.52). If the incident ray strikes the water-glass interface at an angle 0, 0, which of the following relations regarding the angle ofrefraction is correct?▸ View Available Hint(s)0₂ > 0₁O 02₂ 0₂O 0₁62 = 01SubmitPart E4 of 22 >Consider a ray of light that propagates from air (n = 1) to any one of the materials listed below. Assuming that the ray strikes the interface with any of the listed materials always at the same angle 8₁, in whichmaterial will the direction of propagation of the ray change the most due to refraction?▸ View Available Hint(s)ice (n = 1.309)O water (n = 1.333)O turpentine (n = 1.472)Oglass (n = 1.523)O diamond (2=2.417)P Pearson Is Light Reflected or Refracted?When light propagates through two adjacent materials that have different optical properties,some interesting phenomena occur at the interface separating the two materials. Forexample, consider a ray of light that travels from air into the water of a lake. As the raystrikes the air-water interface (the surface of the lake), it is partly reflected back into the airand partly refracted or transmitted into the water. This explains why on the surface of a lakesometimes you see the reflection of the surrounding landscape and other times theunderwater vegetation.These effects on light propagation occur because light travels at different speedsdepending on the medium. The index of refraction of a material, denoted by n. gives anindication of the speed of light in the material. It is defined as the ratio of the speed of lighte in vacuum to the speed in the material, orn = {Figureincidentrayinterface.€₂reflectedrayrefracted< 1 of 1 >▾When light propagates from a material with a given index of refraction into a material with a smaller index of refraction, the speed of the light▸ View Available Hint(s)Oincreases.O decreases.O remains constant.SubmitPart BWhat is the minimum value that the index of refraction can have?▸ View Available Hint(s)O 0O +1O -1Obetween 0 and 1Submit4 of 22An example of reflection and refraction of light is shown in the figure. (Figure 1)An incident ray of light travelling in the upper material strikes the interface with the lower material. The reflected ray travels back in theupper material, while the refracted ray passes into the lower material. Experimental studies have shown that the incident, reflected, and refracted rays and the normal to the interface all lie in the same plane. Moreover,the angle that the reflected ray makes with the normal to the interface, called the angle of reflection, is always equal to the angle of incidence. (Both of these angles are measured between the light ray and the normal tothe interface separating the two materials.) This is known as the law of reflection.This is the law of refraction, also known as Snell's law.Review | ConstantsThe direction of propagation of the refracted ray, instead, is given by the angle that the refracted ray makes with the normal to the interface, which is called the angle of refraction. The angle of refraction depends on theangle of incidence and the indices of refraction of the two materials. In particular, if we let my be the index of refraction of the upper material and the index of refraction of the lower material, then the angle ofincidence, 8₁, and the angle of refraction, 2, satisfy the relationn₁ sin ₁ = n₂ sin 02.

Accepted Answer

A) The speed of light in a medium is inversely proportional to the refractive index. 
v ∞ 1/n 
So,…