Question

A anormal human eye has a focal length of about 2.3cm if you look at the tib of a pencil 55.3 cm from your eye haw far is the image from the lens of your eye ?
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Answer 1

The image would be 53 cm from the lens of your eye.

What is Lens?
A lens is a transmissive optical tool that uses refraction to focus or disperse a light beam. A compound lens is made up of multiple simple lenses (elements), typically arranged along a common axis, as opposed to a simple lens, which is one solid piece of transparent material. Glass or plastic are used to make lenses, which are then polished or moulded into the desired shape. In contrast to a prism, which simply refracts light without focusing it, a lens can focus light to create an image. Lenses are also devices that focus or disperse waves as well as radiation other than visible light, such as explosive lenses, microwave lenses, particle lenses, and acoustic lenses.

Lenses are a common component of telescopes, binoculars, and cameras, among other imaging devices.

To learn more about Lens
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