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Mirrors

A mirror reflects light in a way that preserves the original image. They are different from other materials that reflect due to the fact that they do not preserve the original waves. Mirrors used most often have a flat surface where the reflect is perfectly symmetrical. Curves mirrors will produce magnified images that distort the reflected images. Mirrors are used everyday for personal use, decoration and architecture. Mirrors are also used in devices such as telescopes, lasers, cameras and industrial machinery. Most mirrors are designed for visible light.

Looking in a mirror, the image will be reversed from the original image.  A mirror will reverse the image on the forward and backward axis. Left and right will be defined relative to the front and back of the image. Flipping the image front and back and left and right is equivalent to a rotation halfway around the vertical axis.

Multistage Amplifer

Attached figure shows the circuit of a multistage amplifier. Identify the stages and describe the operation and principle features of the amplifier. You should also make an estimate of the maximum output current of the amplifier.

"The Mirror with a Memory"

http://delnortetah.wikispaces.com/file/view/The+Mirror+with+a+Memory.pdf What is the thesis and the main point of this essay?

Hard Disk, Floppy, RAID.

Question 1 a. Give five differences between hard disk and compact disk (CD) as media to store data. b. Why are gaps required when a data structure is set up on a floppy disk during formatting? Question 2 a. What is RAID ? b. Describe the various RAID techniques paying particular attention to their advantages and disadvantag

Statistics of the Criminal Justice System and how they represent a larger role of bias and unequal treatment of minorities in general is discussed in the solution focusing primarily on the disproportionate rate of African Americans incarcerated.

Demographic data such as race, age, gender, and social class are associated with crime and criminal justice and can be illustrative of a larger picture in terms of social justice. For example, the racial composition of inmates in U.S. prisons can be illustrative of larger issues dealing with society, police, and the courts. Thes

Refraction, net magnification and internal reflection

1. An object of height 2 cm is placed 10 cm in front of a mirror. What type of mirror with what radius of curvature is needed to create an upright image with a height of 5 cm? 2. A ray of light strikes the midpoint of one face of an equilateral glass prism (n = 1.6) at an angle of incidence of 50°. Trace the path of the r

Magnification of the lens combination, Reflection in sunglasses

5. An object is placed 30 cm to the left of a converging lens of focal length 15 cm, and a diverging lens of focal length 20 cm is placed 45 cm to the right of the first lens. How far from the original object is the final image? What is the magnification of the lens combination? 6. While talking to someone who is wearing sung

Parallel rays on a plane mirror

A plane mirror is placed in front of a multiple ray projector so that the central ray is back upon itself. The other rays are adjusted so they are also reflected back on themselves. In this way, all 5 rays are parallel. A concave mirror is placed in the path of the rays so that the central ray is again reflected back upon

Fringes produced by a Fabry-Perot etalon

A source of visible light is placed before an air-spaced Fabry-Perot etalon od diameter 20mm and mirror separation d = 1mm. The light transmitted by the etalon passes through a convex lens of focal length f and is incident on a screen positioned in the focal plane of the lens. For an extended monochromatic source of wavelengt

images of the plane mirror and the convex mirror

Suppose you walk with a speed of 1.20 m/s toward a plane mirror. What is the speed of your image relative to you, when your velocity is (a) perpendicular to the mirror and (b) at an angle of 45.0° with respect to the normal to the mirror? Convex mirrors are being used to monitor the aisles in a store. The mirrors have

Circuit - 13.2

Skip (b) and plot for the magnitude only. See attached file for full problem description. In the following circuit, the input and output voltages v1(t) and v2(t) are measured relative to ground. a) Calculate the transfer function H(s) of this circuit. Express you answer as a ratio of two polynomials. c) Make a straight-

MATLAB Problem: Make a plot

See attached files. This problem has three parts to it. Parts A and B can be solved on paper. Part C requires a MATLAB scripting. I have attached the necessary three documents. *** For Part [A & B]: the solution is T(x,t) = Sum T_G(x - (nL+(-1)^n x_o), t) For Part [C]: Please make a plot of T(x,t) vs x vs t a

Wavelengths and Images

8. If the wavelength of visible light was around 10cm instead of 500nm and we could see it, what effect would this have on diffraction and interference? 24. How would figure 9.29 be different if the glass were replaced by water or by a diamond? 38.) Indicate whether each of following is a real image or virtual image. a

wavelength produced one more new maxima then other wavelength

1. Light emitted by Element X passes through a diffraction grating having 1200 lines/mm. The diffraction pattern is observed on a screen 75.0 cm behind the grating. Bright fringes are seen on the screen at distances of 56.2 cm, 65.9 cm and 93.5 cm from the central maximum. No other fringes are seen. a) What is the value of "

Questions

(See attached file for full problem description) 5. The lens and mirror in Figure P23.51 are separated by 1.00 m and have focal lengths of +80.2 cm and -49.0 cm, respectively. If an object is placed 1.00 m to the left of the lens, locate the final image. State whether the image is upright or inverted, and determine the ov

Spherical Mirror Optics

An insect of height 2 cm is in front of a spherical mirror whose focal length has the absolute value | f | = 40 cm. The insect sees an image of itself that has a height of 0.40 cm and appears upright. 1) Is the image real or virtual? Is it on the same side of the mirror as the insect or the other side? 2) Is the mirror co

Reflection from curved surfaces: Concave and convex mirrors.

This problem deals with lenses, please explain using equations, and ray diagrams. A real object is at the zero end of the meter stick. A large concave mirror at the 100-cm end of a meter stick forms an image of the object at the 70-cm position. A small convex mirror placed at the 20-cm position forms a final image at the 10-c

The reflection of light in mirrors

A concave mirror has a focal length of 30.0 cm. The distance between an object and its image is 45.0 cm. Find the object and image distances, assuming that (a) the object lies beyond the center of curvature and (b) the object lies within the focal point.

Ray tracing with mirror equation

An object with a height of 42 cm is placed 2.0 m in front of a concave mirror with a focal length of 0.50 m. (a) Determine the approximate location and size of the image using a ray diagram. (b) Is the image upright or inverted?

The radius of a curvature

The radius of curvature of a spherical mirror is 32 cm. rays parallel to the axis of the mirror will be brought into focus at a point that is what distance fron the mirror? a. 8.0cm b. 32 cm c. 4.0 cm d. 16cm

Lenses/Radius of Curvature

Hi. Can someone please show me how to do the following problem? Thank you. "When a patient is being fitted with contact lenses, the curvature of the patient's cornea is measured with an instrument known as a keratometer. A lighted object is held near the eye, and the keratometer measures the magnification of the image formed

Cosine and Sine Fourier Transforms

Problem 1: Consider a function f(t) that is zero for t<0 and equals e^-t/2r for t>=0. Find its Cosine and Sine Fourier Transforms A(w) and B(w). Make a nice plot of A(w) and B (w). Find a convenient value of tau. Problem 2: Find the Cosine and Sine Fourier Transforms A(w) and B(w) for the sinusoidal pulse f(t) given by f(t

Mirrors And Lens: Find Position and Magnification

An object is placed 18 cm to the left of a converging lens of focal length 27 cm. A diverging lens of focal length 10 cm is 25 cm to the right of the converging lens. Find the position and magnification of the final image?

Calculating angle of incidence

A person stands 3.4m in front of a wall that is covered floor-to-ceiling with a plane mirror. His eyes are 2.0m above the floor. He holds a flashlight between his feet and manages to point it at the mirror. At what angle of incidence must the light strike the mirror so the light will reach his eyes?

Starting a fire with a mirror and sunlight.

Which kind of spherical mirror, concave or convex, can be used to start a fire with sunlight? For the best results, how far from the mirror should the paper to be ignited be placed?