Mirror Definition and 630 Threads

Homework Statement A physics student wants toobtain a real and virtual image that each is 3 times as large as the original object she has a concave mirror with a 0.50 m radius of curvature. what object distance will she require to obtain the real image? Homework Equations 1/do + 1/di =...

Homework Statement An object is located 14 cm in front of a convex mirror, the image being 7 cm behind the mirror. A second object, twice as tall as the first one, is placed in front of the mirror, but at a different location. The image of this second object has the same height as the other...

Homework Statement #1) How many images can be seen? 2 mirrors, one on x axis, other y axis. Homework Equations Law of reflection: \varthetai=\varthetar Is the positioning correct? I thought that rays bounce off the x-axis mirror then y-axis mirror to give 2 images. The third image...

I have problem in my design. how efficient the glass will transfer heat after reflection. The heat will purely come from sunlight. Can anyone tell me about the efficiency of glass... then, is it any angle to reflection of sunlight into incline area, because i am trying to reflect the...

Prove how focus of a spherical mirror = Radius of curvature/2

concave mirror! Homework Statement The real image produced by a concave mirror is found to be 0.756 times the size of the object. If the distance from the mirror to the screen on which the image appears is 0.764 m , what is the focal length of the mirror? Homework Equations (a) 1...

Anyone know of an E&M textbook that covers plane mirror waveguides in any reasonable detail?

Would light in a hollow sphere with one way mirror around it continue to have the light trapped bouncing inside forever? one way mirror so in a dark room you can see the light inside. infinite lite light bulb..sorta.

Homework Statement -------------------------------------------------------------------------------- You are preparing to go shopping for a plane mirror that will be hung on the wall of your dressing room. Your overall height is H = 2.3 m, and the vertical distance from the floor to the...

Homework Statement A concave mirror has a focal length of 27.2 cm. The distance between an object and its image is 50.2 cm. Find (a) the object and (b) the image distance assuming that the object lies beyond the center of curvature. Homework Equations f=1/2 R 1/object distance + 1/image...

I know that when the focal point is in the inside of a concave mirror. The focal point is greater than zero, and the radius is greater than zero and the lateral magnification is greater than zero. So if the focal point is on the outside of this concave mirror. Would the focal point be...

I'm having problems doing the problem below. The equation in the hint is: I = Ps/(4*PI*r^2) which I have not clue how it relates to this question except for that it's an equation for intensity. I know that there will be a image produced a distance d behind the mirror, so there will be another...

hello, I found a concave mirror telescope in my town I think that it is very good for making Newton telescope Estimated length of 20 cm I will make a telescope , but I have a problem , I do not know the place of the focus and the place of secondery mirror; after focus or before...

hi again. i totally rocked my physics homework this week, except for this last one. Homework Statement Consider a spherical mirror without making the paraxial approximation (Fig. 36-47, attached as a file). When a ray parallel to the axis makes an angle θ with the radius R at the point of...

Homework Statement In a church choir loft, two parallel walls are 4.98 m apart. The singers stand against the north wall. The organist faces the south wall, sitting 0.967 m away from it. So that she can see the choir, a flat mirror 0.855 m wide is mounted in the south wall, straight in front...

Homework Statement A mirror moves perpendicular to its plane with speed (beta)c. A light ray is incident on the mirror from the \forward" direction (i.e., vm dot vl < 0, where vm is the mirror's 3-velocity and vl is the light ray's 3-velocity) with incident angle µ (measured with respect to...

http://www.newscientist.com/gallery/dn16585-amazing-mirrors/1 (links to this and more) http://www.math.drexel.edu/~ahicks/

Homework Statement A light ray leaves point A in the figure, reflects from the mirror, and reaches point B. (Intro 1 figure) figure attached How far below the top edge does the ray strike the mirror? Homework Equations The Attempt at a Solution im not sure exactly where it...

This is a question from a mathematically-inclined homeowner who knows he /should/ be able to figure it out, but can't. I need to hang a heavy mirror in a house in Berkeley, CA, which is a seismically-active area. The mirror has a cable on the back of it attached to two sides of the mirror...

A concave mirror creates an image on the screen 2x larger than the object. BOTH objects and screen are subsequently moved in order to create an image on the screen 3x larger than the object. If the screen is moved 0.75 m in this process, how far is the object also moved? --- Magnification, M =...

Homework Statement Show that the mirror equation can be derived using the same principles that were used in deriving the equation for lenses. Homework Equations \frac{1}{f}=\frac{1}{d_{o}}+\frac{1}{d_{i}} The Attempt at a Solution There really doesn't appear to be any work to put...

Homework Statement An object whose height is 0.375 cm is at a distance of 10.5 cm from a spherical concave mirror. Its image is real and has a height of 1.145 cm. Calculate the radius of curvature of the mirror. Correct, computer gets: 1.58e+01 cm ACTUAL QUESTION How far from the...

Homework Statement A concave shaving mirror has a radius of curvature of 40 cm. It is positioned so that the (upright) image of a man's face is 3.30 times the size of the face. How far is the mirror from the face? Homework Equations M = Si/S 1/S + 1/Si = 2/R The Attempt at a...

Homework Statement does anyone know how to do this plane mirror question? The rear window in a car is approximately a rectangle, 1.29 m wide and 0.330 m high. The inside rear-view mirror is 0.480 m from the driver's eyes, and 1.27 m from the rear window. What is the minimum height of the...

Lets say you are looking through a two way mirror on the side where you can see through it, and there is a mirror on the other side. What would you see? So there is two mirrors back to back and you can see through one of them. So when the light bounces off the first mirror and trys to go back...

Homework Statement An inverted image is magnified by 2 when the object is placed 22 cm in front of a concave mirror. Determine the image distance and the focal length of the mirror. Homework Equations don't have,sorry The Attempt at a Solution firstly,i use M= -di/do then i got...

Rules: Compress to single digits to reveal ratio pattern. The line is to be followed - 1,2,4,8,7,5 and back to 1. Each number being added to itself.The other line is the invisible nines. Control Dial: 2-D Skin (ignore the +&-) 3-D Torus Have fun! :smile:

[Urgent] What is the angle of the the mirror? Homework Statement There is an intriguing aspect to Vermerr's "The Music" painting. If you notice, in the mirror there is a reflection of the woman and above that there is a reflection of what appears to be the feet of an easel. Upon closer...

An object is placed 1m in front of a plane mirror. An observer stands 3m behind the object. For what distance must the observer focus his eyes in order to see the image of the object? My guess is that the observer would have to focus their eyes 3m in order to see the image because when the...

Homework Statement A concave mirror has a focal length of 33.5 cm. Determine the object position for which the resulting image is upright and five times the size of the subject. Answer in units of cm. Homework Equations m=-(di/do) (1/di)+(1/do)= 1/f The Attempt at a Solution...

Homework Statement Mastering physics problem 23.76 difficulty rating: two bars=difficult A 2.0-cm-tall object is placed in front of a mirror. A 1.0-cm-tall upright image is formed behind the mirror, 180cm from the object. What is the focal length of the mirror? Homework Equations...

Hi. I am an artist and currently working on a project using mirrors. I need to transfer an image (portrait photo) onto a mirror so I can trace directly on the mirror surface so I have the guides to then paint over it. I would like to be able to use an overhead projector but of course the light...

Homework Statement A guy named Joe, who is 1.6 meters tall, enters a room in which someone has placed a large convex mirror with radius of curvature equal to 30 meters. The mirror has been cut in half, so that the axis of the mirror is at ground level. As Joe enters the room, he is 5...

Homework Statement You are preparing to go shopping for a plane mirror that will be hung on the wall of your dressing room. Your overall height is H = 2.4 m, and the vertical distance from the floor to the mid-line of your eyes is H1 = 2.23 m. You want the mirror to be tall enough to allow...

Homework Statement The rear window in a car is approximately a rectangle, 1.3 m wide and 0.30 m high. The inside rear-view mirror is 0.62 m from the driver's eyes, and 1.58 m from the rear window. What are the minimum dimensions for the rear-view mirror if the driver is to be able to see the...

Is there any kits i can purchase? I'd like to avoid diffraction as much as possible.

I saw part of a documentary about the keck telescope, they used an instrument that vibrated if any thing came near it to align the mirror segments, this instrument has fantastic accuracy apparently, can anyone tell me what it is called please.

A man of height 2h stands in the middle of a room of length 6h. The height of a wall is 4h. What is the minimum length of a mirror to be placed on the wall in front of the man so that he can see the entire wall behind him?

Can I use a shaving mirror on reflecting telescope as a primary mirror??

Homework Statement Heres the problem, I've done these kind of problems before but it has been about a year for me since I've done one and I can't seem to remember how to anymore: A pair of “fuzzy dice” hangs from a string attached to the rear view mirror of a race car moving with constant...

[b]1. The problem statemen two mirrors are place together ,show that a point source in front of these mirrors and its two images lie on a circle. _--find the centre of circle --- in a diagram show where an observer should stand so as to be able to see both images. I am not getting...

Hi! I am looking for a person to help me with a project I'm developing. I am using mirrors to bend reflections around a wall. I have a quick blueprint drawn and I'd like to talk to someone to explain them in depth...I think, theoretically it will work however I really could use some advice...

[b]1. a person whose eyes are H=1.82m above the floor stands L=2..11m in front of a vertical plane mirror whose bottom edge is h= 49.5 cm above the floor, as seen in the figure below. what is the horizontal destance x to the base of the wall supporting the mirror of the nearest point on the...

Light Does the speed of a photon go to zero when it reflects of a mirror at a 90 degree angle? Just to be sure, I mean if the photons’ comes straight down on a mirror lying flat and reflects straight up, does the photon’s velocity reach zero at any point in time? also Particle...

Homework Statement What is the relative size, orientation, and type of image from an object placed at the centre of a concave mirror? Homework Equations I drew a ray diagram for this. The Attempt at a Solution The image will be erect, the same size and real. That seemed...

Hello, I just purchased a 6" mirror that has a focal ratio of 3.3, ready to go for $50. Is there any links one can provide on building a telescope for such a mirror? I decided to do away with my previous idea, and keep that one around.

Hello all, I have a quick question. If i put two identical mirrors right next to each other on the same surface at the same level and stand in the middle of it will i see two of me or will it act like looking myself if that mirror was one single piece. Thanks!

A glass is located in front of concave mirror as shown in figure. The gap between mirror and glass is neglected. In this conditions, where is the final image of matter? http://i26.tinypic.com/2a6w6es.jpg The answer of above problem is not match with mine. I need help. I draw the beams...

Okay, so I was reading a forum on the color of a mirror. End result beign that it doesn't have one. But if color is only as we percieve it, then is color not really there, and 'light' is really the only factor? I'm just now picking up the whole physics things, so as much yet simple...

Homework Statement an image in a convex mirror is 12cm tall and 30cm from the mirror.IF the focal length is 50cm, where is the object and how tall. Homework Equations (1/f)=(1/do)+(1/di) M= hi/ho =-di / do The Attempt at a Solution i got 7.5cm for the object height but a convex...