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The distance from the centre of the lens to the focal point.
Carlie Renner
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Which lens has a greater power convex lens of focal length 10 cm or a convex lens of focal length 20cm?
Power is inversely related to the focal length. So convex lens of focal length 20 cm has less power compared to that having focal length 10 cm
Why the study was under taken of focal length of a convex lens by graphical method?
to determine the focal length of a convex mirror.
What happens to the focal length of convex lens when convex lens is cutted vertically along the optic center?
its focal lenght becomes 2f
Explain how the focal length changes as a convex lens becomes flatter?
The focal length of a lens is the distance from the center of the lens to the point at which it focuses light rays. The bigger the focal length, the more powerful the lens. ChaCha!
What is focal length of a door peephole's lens and is it concave or convex?
The lens in a door peephole is a convex lens with a very short focal length, giving it a wide field of view. If it were on a camera, it would be called a "Fisheye lens".
Length of a lens is the distance from the center of the lens to its principal focus?
It is called the focal length. It is equal to 1/2 times r, and is positive on concave mirrors and negative on convex mirrors.
Which lens of suitable focal length is used for correcting a hypermetropic eye?
convex lens
What is the positive lens is the same as?
The focal point F and focal length f of a positive (convex) lens, a negative (concave) lens, a concave mirror, and a convex mirror. The focal length of an optical system is a measure of how strongly the system converges or diverges light.
What will be the power of convex lens having a focal length is 50 cm?
Convert the focal length to meters, then take the reciprocal. That is how the "power" of a lens is calculated.
Where is the focal point in a convex lens?
If you shine a parallel (ie unfocussed) beam of light perpendicular to a convex lens it will focus to a point on the other side. That place is called the focal point of the lens. Its distance to the lens is called the focal length.
What is the power of a convex lens with 10cm focal length?
1.0 diopters
What happens to focal length when convex lens is cut horizontally?
no change
