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Do concave mirrors reflect sharp images?
It depends on the precise shape of the mirror. What's generally meant by "sharp image" is that the light rays focus at a single point. If the curvature of the mirror is variable, this doesn't happen.
What colour would be inside a box of mirrors?
If you visit a site called Librivox(www.librivox.org) you will be able to download some audio books. Also, LimeWire(www.limewire.com) can be used but be careful not to violate copyrights. You could even find some cheap audio books on EBay.
Would the mirror equation work for plane mirrors?
No, it will not, this is because a plane mirror has no focal point. It's rays never converge at a single point like a concave mirror, and therefore it has no focal point The mirror equation is 1/f=1/di + 1/do, where f is the focal point, di is the distance of the image from the mirror, and do is the distance of the reflected object from the mirror. Since focal point is required for the equation, it can't work. Hope this helps.
How does a convex lens change the path of light?
it bends the light toward a single point
What Is the focal point of a concave mirror?
It is the point at which light comes to a focus at a single point in space at a certain distance from the mirror relative to its curvature.
What would be the equivalent single-mirror diameter of a telescope constructed from two serparate 11 m mirrors?
Two separate 11 m mirrors have the same total areaas a single 15.56 m one.
Which is bigger a reflecting or refracting telescope?
There is no single answer to this question. The Cassegrain has a paraboloidal shaped main mirror. The Ritchey-Chrétian has a hyperboloidal main mirror. I have a Schmidt-Cassegrain which has a spherical main mirror. Dall-Kirkham telescopes have an ellipsoidal main mirror. The secondary mirror can have different shapes as well but I won;t get into hose. That's a separate issue.
Differences between reflecting and refracting telescopes?
Reflecting Telescopes -uses a single or combination of curved mirrors to bring light to a focus and make an image.
Do concave mirrors reflect sharp images?
It depends on the precise shape of the mirror. What's generally meant by "sharp image" is that the light rays focus at a single point. If the curvature of the mirror is variable, this doesn't happen.
How many reflections are there in a mirror image?
A single mirror will only have one image of whatever it is reflecting. It is possible to see more than one image by having two mirrors reflect each other. Many images will then be visible.
What is the color of mirror?
A mirror has no color. A perfect mirror will reflect all light equally and spectrally. A spectral reflection is one where all light hitting the mirror from a single direction is reflected in a single direction as it leaves the surface.As mirrors are usually constructed behind a thickness of glass, the glass itself can sometimes absorb certain colors and so the mirror does not reflect all colors fully. Then it may appear that the mirror has a color.There is no specific color of mirror. A mirror is a silver plated surface covereg with plane glass, reflecting whatever color coming in the front of it.
What colour would be inside a box of mirrors?
If you visit a site called Librivox(www.librivox.org) you will be able to download some audio books. Also, LimeWire(www.limewire.com) can be used but be careful not to violate copyrights. You could even find some cheap audio books on EBay.
What is a telescope that uses one or more mirrors?
multiple-mirror telescope OPTICAL ;p
How many mirrors does a reflecting telescope have?
A reflecting telescope only needs one mirror, the primary mirror which will focus incoming light to a single point. A digital telescope might place the digital recording media directly in front of the reflecting telescope without any additional mirrors (although perhaps some lenses). For practical purposes though, most optical telescope will have a secondary mirror that will either focus light straight back through a hole in the primary telescope mirror, or to the side of the telescope. Some telescopes, especially the large ones in observatories will have several mirrors directing the light path to the observer or recording equipment.
Would the mirror equation work for plane mirrors?
No, it will not, this is because a plane mirror has no focal point. It's rays never converge at a single point like a concave mirror, and therefore it has no focal point The mirror equation is 1/f=1/di + 1/do, where f is the focal point, di is the distance of the image from the mirror, and do is the distance of the reflected object from the mirror. Since focal point is required for the equation, it can't work. Hope this helps.
Why are curved mirrors used in some telescopes?
Plane mirrors don't form real images. Concave mirrors and convex lenses do. Without a real image, you have nothing to expose film to, nothing to project onto a screen, nothing to capture on a CCD or vidicon, and nothing to look at with an eyepiece.
Why Michelson used octagonal mirror in determining speed of light?
If he had used an ordinary mirror he would only get one reflection per revolution, and since the light travels so fast his motor speed would have to be impossibly high. So he put 8 mirrors on the spindle and the rotational speed then needed to be only 1/8 of that for a single mirror.
