0
Concave mirrior
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Which lens is a converging lens a double-convex lens or a spherical-convex lens or a plano-concave lens or a convexo-concave lens?
Your are mixing properties. Converging lens is always thicker in the centre and thinner at the edges. The other cathegory is the geometry of shape of the surfaces of the lens. Convex means that the shape is similar to the outer surbace of a sphere, concave means that the shape is similar to the iner surface of a sphere (or: convex = lower side of a spoon as we use it for sampling a soup; concave: upper (inner) shape of the spoon). A double convex lens is always a converging lens. A plano-concave lens is always a diverging (not converging) lens. A convexo-concave lens is the most usual shape of a lense used in spectacles. It can be either converging or diverging, depending on the radii of the surfaces.
What are uses of convex mirror?
The most common use of a convex mirror is as view finder in vehicles. It is used in supermarkets and stores for surveillance. For making sun glasses and telescopes also convex mirror is used.
Where are lens are used?
Lens are widely used. The most common example of the usage of lens is the spectacles. The spectacles contain either convex or concave lenses. In some cases it is plane. Convex Lens are widely used in Magnifying glasses, Microscope and Telescopes. Convex lens are used in torch lights. It helps in concentrating the light rays emitted from the bulb to a point, hence increasing the intensity of light at that point.
Does a telescope use a convex lens?
Reflecting telescopes don't use lenses - they use mirrors (hence 'reflecting'). Light goes in the top, hits a concave mirror at the bottom of the tube which makes the light converge when it is reflected, then bounces back up to the top where it hits a smaller secondary mirror, where it is directed down the eyepiece. Do you mean refracting telescopes? If so then these do use lenses, the amount depends on the telescope. The most simple form has an objective lens which focuses the light, and then an eyepiece which has a lens in it to magnify the image. The objective lens is convex on the side pointing out of the telescope, and is flat on the other side.
What is the difference between convex and concave lenses?
The expressions relate to the shape of the surfaces of the lens. Concave means that the surface is like the inside of a sphere, convex means that it looks like the outside surface of a sphere. A lens has two surfaces. Most often the spectacle lens are bent away from the eye: the nearer surface is concave and the outside surface is convex.
Which lens is used by dentist?
Well, It depends what kind of image do they want. It would be most likely a convex lens/ mirror. Convex lenses make things bigger.
What happens to light that passes through a convex lens?
Light travelling through a concave lens will spread out. In most optical systems that use a concave lens, such as a telescope that needs to magnify the focal plane image, this is a desirable effect.
Which lens is a converging lens a double-convex lens or a spherical-convex lens or a plano-concave lens or a convexo-concave lens?
Your are mixing properties. Converging lens is always thicker in the centre and thinner at the edges. The other cathegory is the geometry of shape of the surfaces of the lens. Convex means that the shape is similar to the outer surbace of a sphere, concave means that the shape is similar to the iner surface of a sphere (or: convex = lower side of a spoon as we use it for sampling a soup; concave: upper (inner) shape of the spoon). A double convex lens is always a converging lens. A plano-concave lens is always a diverging (not converging) lens. A convexo-concave lens is the most usual shape of a lense used in spectacles. It can be either converging or diverging, depending on the radii of the surfaces.
What are uses of convex mirror?
The most common use of a convex mirror is as view finder in vehicles. It is used in supermarkets and stores for surveillance. For making sun glasses and telescopes also convex mirror is used.
What type of lens do camera use?
convex lenses are found in camera's most often.
Where are lens are used?
Lens are widely used. The most common example of the usage of lens is the spectacles. The spectacles contain either convex or concave lenses. In some cases it is plane. Convex Lens are widely used in Magnifying glasses, Microscope and Telescopes. Convex lens are used in torch lights. It helps in concentrating the light rays emitted from the bulb to a point, hence increasing the intensity of light at that point.
Does a telescope use a convex lens?
Reflecting telescopes don't use lenses - they use mirrors (hence 'reflecting'). Light goes in the top, hits a concave mirror at the bottom of the tube which makes the light converge when it is reflected, then bounces back up to the top where it hits a smaller secondary mirror, where it is directed down the eyepiece. Do you mean refracting telescopes? If so then these do use lenses, the amount depends on the telescope. The most simple form has an objective lens which focuses the light, and then an eyepiece which has a lens in it to magnify the image. The objective lens is convex on the side pointing out of the telescope, and is flat on the other side.
How do you replace turn signal bulb side view mirror?
The turn signal bulb on the side view mirror on most cars can be changed by unscrewing the lens from the mirror. On some vehicles this lens slides out.
Plane mirror convex or concave mirror which is best for bicycle mirror?
I use a mirror with a slight convex curve - like the outside of a spoon, but a lot less bent. But it's hard to find a good one. If you fasten a flat mirror most places on a bicycle, the mirror image will shake around so you can't see it. Also, in a convex mirror, you can see more of the road. But if it's too much bent, too round, then the image is distorted and you can't judge where a vehicle in the mirror really is. The last mirror I bought was described as convex, but actually is flat, so I'm planning to get a piece of car mirror glass cut by a glazier to fit in the frame. That glass is just a little convex. Robert Carnegie, Scotland
What happens to most of the light rays that strike a convex lens?
If the lens is convex, they will be diffracted and focused to a point, after which they will spread out. If it's concave, they will be diffracted so that they spread out without first concentrating.
What type of diagram shows how a convex lens refracts light?
You can look at this website: http://www.glenbrook.k12.il.us/gbssci/Phys/Class/refln/u13l4c.html. The images at the top of the page show the rays different positions on convex mirrors.
What is the difference between convex and concave lenses?
The expressions relate to the shape of the surfaces of the lens. Concave means that the surface is like the inside of a sphere, convex means that it looks like the outside surface of a sphere. A lens has two surfaces. Most often the spectacle lens are bent away from the eye: the nearer surface is concave and the outside surface is convex.
