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What else can I help you with?
Which lens provides more magnification-a low power or a high power?
A lens of short focal length has a greater power (than a lens of large focal length)
Which lens in a refracting telescope has a shorter focal length?
The objective lens in a refracting telescope typically has a shorter focal length compared to the eyepiece lens. This is because a shorter focal length allows for higher magnification and better light gathering capabilities.
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".
What is a positive lens the same as?
A positive lens is also called a magnifying lens. It has convex surfaces and it has a measureable focal length where it produces an inverted image of a distant object. The power in dioptres is the reciprocal of the focal length in metres.
What will be the magnification of a lens of 20D?
The magnification of a lens is calculated using the formula M = 1 + D/f, where M is the magnification, D is the lens power in diopters (20D in this case), and f is the focal length of the lens in meters. Without knowing the focal length of the lens, we cannot determine the exact magnification.
What is the lens focal length formula used to calculate the focal length of a camera lens?
The lens focal length formula used to calculate the focal length of a camera lens is: Focal Length (Distance between lens and image sensor) / (1 (Distance between lens and object) / (Distance between lens and object))
Does a diverging lens have a focal length?
Yes, a diverging lens does have a focal length. The focal length of a diverging lens is negative, as the light rays diverge after passing through the 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.
What is the focal length of a converging lens?
The focal length of a converging lens is the distance from the lens to the point where light rays converge after passing through the lens.
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!
How can one determine the focal length of a lens?
The focal length of a lens can be determined by measuring the distance between the lens and the point where light rays converge to form a sharp image. This distance is the focal length of the lens.
Does the focal lens length have three classifications?
yes, focal lens length has three classifications
What will happen to the focal length of a lens if it is cut into half vertically?
When the lens is cut vertically then the focal length of the lens will increase.the focal length will become approx double.
What factors can affect the focal length of a lens?
There are many factors affecting the focal length of a lens, these include: - The thickness of a lens. - The curviture of a lens. - The material the lens is made out of. E.g. Glass or plastic. - The light intensity going through the lens. - The shape of the lens. These, are just few of the many factors that may affect the focal length of a particular lens. I hope this has helped.
How does a lens adapter affect the focal length of a camera lens?
A lens adapter can change the focal length of a camera lens by either increasing or decreasing it, depending on the specific adapter used.
What are the characteristics of a lens with a negative focal length that differ from those of a lens with a positive focal length?
A lens with a negative focal length diverges light rays and creates virtual images, while a lens with a positive focal length converges light rays and forms real images.
How do you calculate focal length of lens?
The focal length of a lens can be calculated by measuring the distance between the lens and the image plane when an object far away is in focus. This distance is the focal length of the lens. Alternatively, the focal length can be found using the lens maker's formula: 1/f = (n-1) * (1/R1 - 1/R2), where f is the focal length, n is the refractive index of the lens material, and R1 and R2 are the radii of curvature of the two lens surfaces.
