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Is the optical axis an imaginary line that divides a mirror in half?
Yes, or a lens.
What is the center point of lens called?
axis or optical center
A straight line drawn outward from the center of a lens or mirror?
Optical axis. There ya go!
When looking through a convex lens how does the image change?
It changes by a process called refracting.
12x lens equals how many mm?
In standard film camera reference which is commonly used, a 50 mm lens equals a neutral value, or 1x magnification, so a 12x lens would be 600 mm.
What is optical center of lens?
The optical center of the lens is a point on the axis of a lens is the point where any ray passing through this point, the incident part and the emergent part are parallel. It is important for the proper refraction of light.
What is the optical center of a zoom lens?
If you look through the lens at a distant point, the point image will not move when the lens is rotated slightly about a vertical or horizontal axis the goes through the nodal point. This is called the optical center. With a thin lens this is close to the geometric center, with a longer complex lens the optical center is buried somewhere inside. The optcial center of a complex lens may or may not be inside an element.
What are the three laws governing light passing through a converging lens?
Any incident ray traveling parallel to the principal axis of a converging lens will refract through the lens and travel through the focal point on the opposite side of the lens.Any incident ray traveling through the focal point on the way to the lens will refract through the lens and travel parallel to the principal axis.An incident ray that passes through the center of the lens will in effect continue in the same direction that it had when it entered the lens.
Is optical center is same as the geometric center of a lens?
no it is same
Difference between focal point and focal length?
The focal point is the point where light converges after it passes through a concave lens. The focal length is the distance of the focal point to the lens. Same for a convex lens, except that the focal point is the imaginary point from where light deflected from lens seems to have emerged.
What is optical center of a lens?
optic centre is the geometrical centre of the lens the rays of light passing through this point emerges in the same direction without bending.
Rays of light incident on a lens anb parallel to the principal axis of the lens converge?
They converge in the focus of the lens. It can be, of course, real or imaginary (it depends on if the lens is concave or convex, respectively).
What is called optical center of a lens?
optic centre is the geometrical centre of the lens the rays of light passing through this point emerges in the same direction without bending.
Why the a ray passing through center of lens do not bends?
It is because the central portion of the lens i.e. optical centre can be considered similar to a parallel sided glass slab.
What part of a convex lens is thicker?
The convex lens are the converging lens. The periphery of the convex lens is thinner & the center part is thicker. In other words, the convex lens are bulging at the center & thinner at the periphery.
Explain the shape of a concave lens and a convex lens?
A convex lens is thicker in the center than at the edges. A convex lens is like a concave mirror.A concave lens is thinner in the center than at the edges.
What is a lens has a center that is thicker than its edges?
A convex lens.
