Lab 09-Reflection and Refraction (1)

When light travels from air into water, which of the following statements is accurate?  a. The wavelength decreases, and the speed decreases. b. The wavelength decreases, and the speed increases. c. The wavelength increases, and the speed decreases. d. The wavelength increases, and the speed increases.

air crystal Consider 2 rays of light inside of a clear crystal. Both rays are incident upon the crystal/air boundary at the same point with the angles indicated, and ray A is internally reflected. Here, take a = B= 30 degrees. Choose all of the following statements that are true: Select one or more: a. In order that the ray A is internally reflected, the index of refraction has to be anything greater than 2 9 b. The speed of the rays in the crystal is a bit slower than the speed of light O c. The speed of the rays in the crystal is a bit faster than the speed of light O d. Since A is internally reflected, B also must be internally reflected. e. The speed of the rays in the crystal is equal to the speed of light f. In order that the ray A is internally reflected, the index of refraction has to be anything greater than 1.15

Light in alcohol (n = 1.36) is incident on flint glass (n = 1.66) as shown below. Normal Alcohol Flint Glass Which of the following is a true statement about the path of the light in the flint glass? The speed of the light decreases and the ray bends away from the normal The speed of the light decreases and the ray bends toward the normal The speed of the light increases and the ray bends toward the normal The speed of the light increases and the ray bends away from the normal

The current that flows through a battery-powered flashlight, solar cells and fuel cells is called ____. A. AC B. DC C. LC D. RC A beam of white light goes from air into the water droplet at an incidence angle of 36.2 degrees. What is the angle between the red (660 nm) and violet (410 nm) parts of the refracted light?A. 20O B. 21O C. 22O D. 23O A magnetic field B= 0.6T is directed upward through a circular loop of diameter 7 cm and 500 turns. The loop is initiallyhorizontal, so it is perpendicular to the magnetic field. It rotates through a horizontal axis so that the plane of the loop is at 74° with the horizontal axis within 1 second. What is the magnitude of the induced emf? A. -18.18 V B. -15.3 V C. 16.4 V D. 17.6 V A electron passes through a magnetic field at 60 to the field at a velocity of 3.5 × 106?/?. What is the magnitude of the force acting on the electron having a 0.45 T magnetic field? A. 2. 18 × 10−10 ? C. 2. 18 × 10−12 ? B. 2. 18 × 10−11 ? D. 2. 18 × 10−13 ? A wire that…

Light in vacuum is incident on the surface of a slab of transparent material. In the vacuum the beam makes an angle of 31.1° with the normal to the surface, while in the slab it makes an angle of 22.0° with the normal. What is the index of refraction of the transparent material? Number i Units eTextbook and Media

Problem Description A laser beam travels from air (n=1) into glass (n=1.5) and then into gelatin. The incident ray makes a 58.0° angle with the normal as it enters the glass and a 36.4° angle with the normal as it enters the gelatin. Instructions In a neat and organized fashion, write out a solution which includes the following: 1. A sketch of the physical situation with all given physical quantities clearly labeled. 2. Draw a ray diagram showing all reflected and refracted rays in this situation and all angles clearly labeled. 3. Determine (a) the angle the refracted ray makes with the normal in the glass and (b) the index of refraction of the gelatin. Clearly show all steps, starting from generalized equations. Explain your mathematical work in words. Your explanation should cover both what you did and the thought process behind why you did that. 4. Evaluate your answer to determine whether it is reasonable or not. Consider all aspects of your answer (the numerical value, sign, and…

Light ray A, travelling in vacuum, is incident on a thin liquid that is used to coat a glass surface. Reflected rays B, C, and D are also shown on the diagram. The refractive index of glass is larger than the refractive index of the liquid coating. SQ-T9.3-P1-Q3 A B D. vacuum liquid glass Which of the following statements is true about the phase change of the three reflected rays? A. All three rays undergo a phase change of 180°. B. Only ray B undergoes a phase change of 180°. C. Only rays B and C undergo a phase change of 180°. D. Only rays C and D undergo a phase change of 180°. Answer C.

What are the factors that affects the refraction of light? Why is it important to understand the speed of light in different mediums? Site 2 industrial applications of this concept.

When the light is passing from denser to a rarer medium, which is the correct statement? angle of incidence is greater than angle of refraction b. angle of incidence is equal to angle of refraction c. angle of incidence is less than angle of refraction d. angle of incidence is equal to critical angle

The figure below shows a slab made of three different materials X, Y and Z having refractive indices nx, ny, and nz The slab is immersed in water (n=1.333) and the light is incident upon its bottom surface. a. Rank the materials according to the refractive index of the materials, greatest first.  b. Rank the materials according to the speed of light in the material, greatest/fastest first.  c. Discuss what would happen to the angle if material X and Y are swapped.  d. If  α=70.0ˆ and θ=50.0ˆ , what is the refractive index of material Z?

QUESTION 2 Which of the following parts of the eye contains the photoreceptor cells commonly called the "rod" and "cones"? a. The optic nerve b. The fovea O c. The vitreous humour O d. The cornea e. The lens QUESTION 3 The time-averaged intensity of sunlight that is incident at the upper atmosphere of the earth is 1,380 watts/m². What is the maximum value of the electric field at this location? O a. 1,200 N/C b. 1,020 N/C C. 1,950 watts/m² d. 660 N/C O e. 840 N/C

A ray of light passes from medium A to medium B. If the angle of incidence is 30° and the angle of refraction is 38°, which of the following statements is TRUE? A. The index of refraction of A is greater than the index of refraction of B. B. The index of refraction of A is lower than the index of refraction of B. C. A and B have equal indices of refraction. D. It cannot be determined unless at least one index of refraction was given. E. It cannot be determined unless the types of material of the two media were given.

The speed of light in a gem is 1.2 x 10° m/s. When light in air is incident onto the gem at 15 degrees, which of the following is the refraction angle? A. 11.2 degrees B. 40.3 degrees C. 3.4 degrees D. 5.9 degrees

What is the speed of light through a piece of clear plastic if its index of refraction is 1.7?   a. 5.10x106 m/s   b. 1.76x108 m/s   c. 3.00x108 m/s   d. 5.10x108 m/s

A ray is directed at a glass–air interface and total internal reflection occurs at the criticalangle. If a thick layer of water is then poured on top of the glass. Which of the followinghappens?(Remember: Water has an index of refraction between that of glass and air.) A. The ray is still totally internally reflected at the glass interface.B. The ray is now totally internally reflected at the water–air interface.C. The ray is no longer totally internally reflected anywhere.D. The answer depends on the angle of incidence on the glass–water interface.

The figure below shows a slab mode of three different materials X,Y and Z having refractive indices nx,ny, and nx respectively. The slab is immersed in water (n=1.333) and the light is incident upon its bottom surface. a. Rank materials according to the refractive index of materials, greatest first. b. Rank the materials according to the speed of light in the material, greates/fastest first. c. Discuss what would happen to the angle y if material Xand Y are swapped. d. If alpha= 70.0 degrees and theta= 50.0 degrees, what is the refractive index of material Z?

Den is doing an experiment with a laser light and these different objects. Laser Light Object 1 Object 2 Object 3 6 Ben knows that Object 1 reflects light. Which sentence describes the path the light will take when shined at Object 1? F. The light with bounce off in all directions. G. The light will be absorbed. H. The light will bounce off at a right angle. I. The light will pass through the other side.