0
What else can I help you with?
What lens used to correct nearsightedness?
Convex lenses are thicker in the middle then the edges and concave are thicker at the edges then the middle. When light travels through lenses, refraction occurs. The light bends either outward or inward, it depends on the lens.The lens of your eye is a double convex lens. Its job is to focus the image on the retina of the eye. If one is farsighted, the lens in the eye causes the focus to be behind the retina. These people see far but have some difficultly seeing close-up.To correct this farsightedness, the person would wear glasses or contacts with convex lenses, for It is often used for close examination of small objects.
Why Describe two ways using convex and concave lenses to form and image that is smaller the the object?
Using a convex lens: When an object is placed between the focal point and the convex lens, the image formed will be virtual, upright, and smaller in size. Using a concave lens: Placing an object further away from the concave lens than its focal point will result in an image that is virtual, upright, and smaller than the object.
What are three ways that a person can manipulate light?
Using lenses to refract light rays in specific directions. Using mirrors to reflect light in desired angles. Using prisms to separate light into its different colors.
Why convex lens are used in huge shopping center?
Conver lenses curve to capture more light. Putting a relective surface on such a lensr allows for more images to be captured without using large mirrors. Essenially these mirors allow for security or personel to view a large portion of a store with less reflective surface.
When will you place an electric lamp from a convex lens so that a parallel beam of light comes out of it?
To produce a parallel beam of light using a convex lens and an electric lamp, you would place the lamp at the focal point of the convex lens. This will cause the light rays emitted by the lamp to become parallel after passing through the lens. Adjust the distance between the lamp and the lens until the light converges at the focal point and then diverges as a parallel beam.
What would an image look like using two convex lenses?
Blurry depending on who is looking through the lenses.
What are some ways using convex and concave lenses to form an image that is smaller than the object?
For forming a smaller image than the object using convex and concave lenses, you can place the object closer to the convex lens than its focal length, then position a concave lens closer to the convex lens than the sum of their focal lengths. This arrangement will produce a smaller inverted image. Adjustments can be made by changing the distances between the lenses to fine-tune the size and position of the image.
Why are the images under the light microscope are reversed and inverted?
The microscope you are using is probably old, and it has an odd number of convex lenses between the object and your eye. in addition to enlarging (or reducing) an image, an optical convex lense also inverts the image. If you were to invert the inverted image again, using another lense, then the resulting image will appear upright. So a microscpope with three lenses (most likely the number of lenses in the microscope you are using) inverts the image three times, resulting in an upside-down image. A microscope with four lenses shows an upgright image. That is why modern microscope manufacturers use an even number of lenses in a microscope (and in binoculars).
Why Images observed under the light microscope are reversed and inverted?
The microscope you are using is probably old, and it has an odd number of convex lenses between the object and your eye. in addition to enlarging (or reducing) an image, an optical convex lense also inverts the image. If you were to invert the inverted image again, using another lense, then the resulting image will appear upright. So a microscpope with three lenses (most likely the number of lenses in the microscope you are using) inverts the image three times, resulting in an upside-down image. A microscope with four lenses shows an upgright image. That is why modern microscope manufacturers use an even number of lenses in a microscope (and in binoculars).
What lens used to correct nearsightedness?
Convex lenses are thicker in the middle then the edges and concave are thicker at the edges then the middle. When light travels through lenses, refraction occurs. The light bends either outward or inward, it depends on the lens.The lens of your eye is a double convex lens. Its job is to focus the image on the retina of the eye. If one is farsighted, the lens in the eye causes the focus to be behind the retina. These people see far but have some difficultly seeing close-up.To correct this farsightedness, the person would wear glasses or contacts with convex lenses, for It is often used for close examination of small objects.
How do reading glasses work describe how the light interacting with the lens?
The inability to clearly see near objects is called hyperopia and is generally caused by refractory error of the eye's lens. Reading glasses change the angle at which light enters the lens, compensating for the refractory error and allowing light to focus appropriately on the macula.
Is it possible to make a gun using concave and convex lens?
Yeah ,for aiming purpose that is for taking target ,but to make gun out of lenses ,it is impossible.
How is far sighteDness corrected?
Farsightedness, or hyperopia, is corrected using convex lenses, which are thicker in the center than at the edges. These lenses help to converge light rays before they enter the eye, allowing images to be focused properly on the retina. Prescription glasses or contact lenses are common methods for correction, and in some cases, refractive surgery like LASIK may also be an option.
What is used to correct farsighted vision?
Farsighted vision, or hyperopia, is typically corrected using convex lenses, which are thicker in the center than at the edges. These lenses help to converge light rays before they enter the eye, allowing the image to focus correctly on the retina. Prescription eyeglasses or contact lenses are common solutions, and in some cases, refractive surgery may also be considered.
Why was JKepler famous?
Johannes Kepler(1571-1630), suggested in 1611 that using convex lenses within the eye piece and a convex lens in the objective would help improve the image. However, he never attempted to make this microscope.
How do you find the power of lenses using focal lengths?
Power (F)= 1/focal length (f) focal length f, is measured in meters the power, F, is in dioptres (D) In converging or convex lenses the power is positive In diverging or concave lenses, the power is negative :)
What is a tool that gathers light with mirrors and lenses called?
Cameras and reflecting telescopes gather light using mirrors and lenses.
