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convex lens at 2c

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15y ago

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Where must be the focal length be put in order have an exact image like the original object?

The focal length must be equal to the distance between the lens and the image sensor or film in order to have an exact image like the original object. This is known as the focal length being set at the "infinity" position for the lens.


Why must the object for the eyepiece be located between lens and f?

The eyepiece serves to magnify the image formed by the objective lens of a telescope or microscope. Placing the object (image) between the eyepiece and the objective allows the eyepiece to magnify the image before it reaches the eye, resulting in a larger and clearer view of the object.


Where must an object to be located for a converging mirror to produce a virtual image?

if the focal length is greater than the object distance from the lens


Where must an object be located for a converging mirror to produce a virtual image?

if the focal length is greater than the object distance from the lens


What are two properties all magnifiers must have in order to magnify an object?

Magnifiers must have a lens or system of lenses that can bend and focus light rays, providing an enlarged image of the object. They also need a minimum focal length to enhance the size of the object when viewed through the lens.


When using a convex lens as a simple magnifying Glass the object must be at what distance?

The object should be placed at the focal point of the lens or slightly closer for a convex lens to be used as a simple magnifying glass. Placing the object at the focal point will produce a virtual and enlarged image that is easier to view and focus on.


What focusing light from a far away object the eye's lens must do?

The eye's lens must flatten to focus light from a far away object, allowing the light to converge onto the retina at the back of the eye. This process helps form a clear image on the retina for the brain to interpret.


Where must an object must be located for concave mirror to produce a real image?

An object must be placed beyond the focal point of a concave mirror for it to produce a real image. This real image will be inverted and located on the same side of the mirror as the object.


What mirror is used in a magnifying mirror?

we can use convex lens(having tapered ends) for that. but the magnifying capability depends on the power the lens. A magnifying glass works by creating a magnified virtual image of an object behind the lens. The distance between the lens and the object must be shorter than the focal lenght of the lens for this to occur. Otherwise, the image appears smaller and inverted, and can be used to project images onto surfaces.


What the most major difference between telescope and microscope?

A telescope must gather large amounts of light from a dim, distant object; therefore, it needs a largeobjective lens to gather as much light as possible and bring it to a bright focus. Because the objective lens is large, it brings the image of the object to a focus at some distance away


What must be true of the surface of an object for it to reflect an entire image?

For an object to reflect an entire image, its surface must be smooth and flat. Rough or curved surfaces will distort or scatter the reflection, preventing an entire image from being reflected.


Where must an object to be located for a converging mirror to produce a real image?

The object must be located beyond the focal point of the mirror for a converging mirror to produce a real image.