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What are 4 uses for a concave lens and 4 uses for a convex lens?
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∙ 13y ago
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Wiki User
∙ 13y ago
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What are the types of lenses and mirrors?
1. plain mirror2. concave mirror 4. concave lens3.convex mirror 5.convex lens
Why it is easier to find the focal point of a convex lens than that of a concave lens?
A convex lens bows outward like the outside of a bowl. A concave lens bows inward like the inside of a bowl. If your camera has a telephoto zoom lens it would have both types maybe 3, 4 or more. These convex, concave lenses are used to focus an image either on to film in the old type camera, or a light-sensitive sensor in a digital camera. The purpose of focusing the image is to unscater the light coming in so your picture will be clear. Having several lenses that can be moved back and forth allows the image to get bigger or smaller, such as in a zoom lens.
An object is placed 4 cm in front of a concave mirror with a focal point of 1 cm describe the image that is formed?
A concave lens will appear!
What are the uses of concave lenses?
Uses of concave mirrors are:1) They are used in telescopes.2)They are used as dentists' mirrrors to magnify the image of a patients teeth to faciliate the examination.3)They are used as cosmetic mirrors to have an enlarged view of the face to apply make up or to shave.4) A Car Headlight bulb has a convex mirror.5)Make-up mirrors in department stores make you look skinnier than you really are.6.) Used as source of fire.7.)They are useful in projector lamps.
Can a quadrilateral have each of 4 angles a different measure?
Yes, be it a common convex quadrilateral or a concave quadrilateral. For a convex quadrilateral, the most obvious example is a irregular trapezium, where the upper base and the lower base are of different length, and the slanted sides are of different length. It is similar for a concave quadrilateral.
Five difference between a concave mirrors and convex mirrors?
Concave Vs Convex 1. Mercury coating will be made on the convex side but here on concave side. So reflecting portion would become concave and here convex 2. Both real and virtual images but only virtual images 3. Both diminished, enlarged and even same size images formed but only diminished. 4. Both inverted (real) and erect (virtual) images but only erect images. 5. Used as shaving mirror and in telescopes but used as rear view mirror
What is the eyepiece for on a microscope?
convex lens ( if u were doing a crossword puzzle like i was it would probably be ocularlens with no spaces.) If you're doing the Microscope Mania Unit Review here's the answers ;-) 1) Leeuwenhoek (across) 1) Light Source (down) 2) Galileo - for mine i got Janssen (teacher wrote it in) 3) High 4) Mirror 5) Base 6) Hooke 7) Objective Lens 8) Magnification 9) Field of view 10) Stageclips 11) Fine 12) Nosepiece 13) Eyepiece 14) Compound 15) Ocularlens 16) Slide 17) Low 18) Arm 19) Diaphragm 20) Coarse 21) Stage 22) Coverslip 23) Single Lens (Reader's Note - Thank you for the answers !)
Why does the shape of the eye lens change?
This adjustment is done by two sets of muscles in the iris: its circular muscles contract to close up the iris, making the pupil smaller - while its radial muscles contract to open up the iris, making the pupil larger.
Function of the convex lens?
Function of Convex lens: Convex lens causes parallel rays of light to converge after refraction. Also the following can also be considered as the functions of convex lens: 1.when the object is at infinity, convex lens forms the image at focus which is real and inverted. 2.when the object is beyond 2F, image is formed between F and 2F which is real, inverted and diminished. 3.when the object is at 2F ,image is formed at 2F,which is real , inverted and of same size. 4.when the object is between F and 2F, image is formed beyond 2F which is real,inverted and magnified. 5.when the object is at F,image is at infinity which is real inverted and very much magnified. 6.when the object is between F and C, image is formed beyond 2F and behind the object which is virtual, erect and magnified.
How many different approaches do cataract and lens replacement uses?
3 different types
How convex lens is a converging lens?
The fact that we observe in case of refraction through prism is, the ray gets bent or deviated towards the base of the prism. So in case of a convex lens you can imagine many prisms have been packed one above the other in the upper half portion and they are packed in the inverted position in the lower half. So as parallel beam of light rays enter through these prisms all get deviated towards the base and hence the rays get converged on the other side. Thus theonly ability of a convex lens is just to converge.1) already converging rays after passing through a convex lens get more converged2) parallel rays falling come out converged3) already diverging one will go less diverged.4) So there is chance for diverging rays after refraction through lens come out parallel.
How do you classify the polygons that are used to create each tessellation?
There are regular polygons (with 3, 4 and 6 sides).There are irregular convex polygons (with 3, 4, 5 or 6 sides). There are [irregular] concave polygons with various numbers of sides.
