Would the size of a lens effect the magnification produced by the lens?
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for the size of the lens i would go back to the lens maker formula it is:\npower of lens = (n(lens) - n(0)) * (1/R1 - 1/R2)\nwhere n(lens) is refractive index of lens material\nn(0) is refractive index of the medium in which lens is kept\nR1 and R2 are surface radius of the two sides of the lens.\nso you can see from the equation to increase power of the lens we can either increase refractive index of the lens (assuming we are seeing it in air) or reduce the radius of curvature of the lens sides. so ideally as power increses the radius of the lens decreases and so the size of the lens also reduces. you can also check out gullstrands equation for further reference of thicker lenses. hope this helps
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focal length is one half the radius of curvature, which is 22.5 cm.  the magnification is proportional to the image distance divided by the object distance.  So the image's distance is twice the object's distance from the mirror.  Now, 1/(object distance)+1/(image distance)=1/(focal length).  Or, 1/(2*object distance)+1/(object distance)=1/22.5 cm.  After some algebra, you can find that the object's distance is 3/2 times the focal length, which is 33.75 cm.  Check the math if you like.  You have all of the equations now.
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As best I recall, the focal length is equal to 2*the Radius of Curvature; 1/f = 1/o+1/i\n\nM= -{i/[o]}; thus, f=54; the image distance is 3 * the object distance; 3o + o = 54 cm; 4*[o] =54 ; [o]=13.5; the other object distance ? I can only find one; the sign on the image is distance is +; Magnification is - so it is "inverted"; or if o=-13.5, the second answer, I THINK, is found; with a +3 magnification; upright
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i'm assuming these are a convex and concave lenses ....hence the different dispersions ....forming a doublet will cause parallel light up to 2000 yards or optical infinity
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I came up with a magnification of about 16\n\nThis interactive website will calculate what you need ==>http://www.csgnetwork.com/telescopemagcalc.html
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More light is needed as the magnification is increased since the size of the hole of the objective lens decreases. Try it!
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In a compound microscope the objective does not have a single lens but a number of lenses. \nA single lens has chromatic and spherical aberration. Both limit the resolving power of the lens. If you combine several lenses you can correct for spherical and chromatic aberration. \nIn addition the projected image of a single lens is not flat but curved. As it is commonly projected onto the flat back of a camera to record the image that will obviously cause problems. Using more than one lens it is possible to correct for that as well. \nAll you ever wanted or needed to know about microscope optics can be found at the link below.\nBy the way, you don't need compound lenses to achieve a higher magnification. But the higher the magnification, the more severe are the aberrations of a lens.
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There are two basic types of lenses: 1. Positive lenses make things appear bigger; 2. Negative lenses make things appear smaller. \nMost people who wear glasses (or contacts) have negative lenses (the ones that make things appear smaller). \nWhen people grow old they often need positive lenses ('reading glasses'), which make things appear bigger.
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Something is wrong with this question. I see it is 2 months old and would write directly if you allow email.\nI think the question should be about the object not the image. If the object is at the focal length of the lens, then the rays are parallel and easy to see with the eyes. The only image is on the inside of the eye.\nIt doesn't make sense to have length anywhere.
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Hello?! You see people every day who are walking around with examples of Snell's law at work -- eyeglasses!\n\nSnell's law applies to optics including the lenses in eyeglasses, telescope lenses, overhead projectors, video projectors.  Then there are prisms such in mobiles.  And the sparkle in diamond rings.  And why when you see a fish in a pond, the fish isn't actually where it appears to be.
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It would lessen the amount of light that enters the eye. The lens must be completely clear, and blood vessels are opaque.
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For a convex lens, a thinner lens will have a greater focal length because the length is mostly determined by the curvature of the lens.  Greater curvature gives shorter focal length.  A thin lens is almost flat, therefore doesn't have as much curvature.  Light striking the lens at a greater angle(more curvature) will refract more.
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The answer is: no.\n\nIt is not the shape of the lens that is important. It is the speed of the propagating wave in the medium in the lens relative to its speed in the medium outside the lens. \n\nConvex lenses made of glass in air focus rays of light. That is because light travels slower in glass than in air, so it is bent and becomes focussed. \n\nIf a convex lens was made of a material in which light travelled fast, and this was immersed in a medium in which light travelled slower, then it would not focus the light, but defocus the light. \n\nSuppose that one had a convex lens of rock, and the propagating wave was sound in air. Since sound travels through rock faster than air, the convex lens of rock would defocus the sound.
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Your eye has a converging lens, so if you ever played with magnifing glass you know the effect of such lens. It concentrats all the light in one dot, which is on the back of the retina.
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See it through a magifying glass. it will look 'BIGGER'
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what is the relationship between the relative angles of polariztion of two polarized lenses and the degree to which they obstruct light ?
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Magnification is dimensionless\n\nWhat is the focal length of the concave mirror in b\n\nConvex mirror has wider field of view.