what is the diameter of the Sun's image at the focal plane of a telescope with apeture 20 cm and focal length 120 cm
Q: What is the magnification of a lens used with a relaxedeye if its focal length is 16 cm?
A: The expression for the magnification of a lens used with a relaxed eyes will be, M=Nf
Q: The focus location that would be most inconvenient for a very large telescope is the a. Newtonian…
A: Telescope is a type of optical instrument which is use to observe the distant objects and their…
Q: A diverging lens with a focal length of 50 cm is placed 100 cm from a flower. Where is the image?…
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Q: An object is placed in front of a convex lens with a 7.00-cm focal length, If the object distance is…
A: Focal length, f = 7 cm Object distance, u = -15 cm
Q: An object with height of 5 cm is placed 15 cm in front of a convex lens with focal length 10cm. What…
A:
Q: Give at least three reasons why reflecting telescopes to refractors. are superior
A: Reflecting telescope: Reflector telescopes use mirrors that are more sensitive to all wavelengths,…
Q: A diverging lens has a focal length of -30 cm. If a peanut is placed 10 cm from the lens, what is…
A: Given data: Focal length of lens is, f=-30 cm. Distance of peanut (Object) distance from the lens…
Q: An object is placed 10 cm from a 15-cm focal length converging lens. What is the magnification of…
A: Calculate the position of the image by using the lens formula. ...
Q: If you build a telescope with a focal length of 1.3 m, what focal length does the eyepiece need to…
A: The magnifying power of a telescope defines how large an image is formed by a telescope. The…
Q: An Astronomical telescope is an angular magnification of 30. If the focal length of the object lens…
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Q: An object placed 10 cm from the lens projects a real image 52 cm behind the lens. What is the focal…
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Q: the focal length of a lens in a box camera is 11mm. The fixed distance between the lens and the film…
A: Using lens equation: 1/f = 1/u + 1/v f = focal length of box camera = 11 mm u = object distance from…
Q: Give difference between microscope and telescope.
A: Microscopes and telescopes function same by letting a person view objects not visible to the naked…
Q: When a converging lens of focal length f is used as a magnifying glass, the object distance must be…
A: The use of magnifying glass to view big image of small object.
Q: What is the magnification of a lens if it makes an object that is 10 mm high appear to be 150 mm…
A: Height of object, ho=10 mm Height of image, hi=150 mm Let magnification be m.
Q: In a camera equipped with a 50-mm focal length lens, the maximum distance that the lens can be from…
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Q: The most important function of an astronomical telescope is to: a. collect as much light as…
A: The most important functions of a telescope are (i) to collect the faint light from an astronomical…
Q: A charged-couple device (CCD) detector ismounted at the focus of an f/7 reflecting telescope with a…
A: Calculating the area of the sky imaged on the entire chip by using the area imaged on a single pixel
Q: What is the angular magnification of a microscope using an objective with a magnification of 22.7…
A: angular magnification=me×mo me=eye piece magnification(ocular)=10.2m0 magnification of objective…
Q: In a refracting telescope, spherical aberration limits a. The focal length of the eyepiece b.…
A: It is a type of distortion that can occur in both lenses and mirrors. Light rays that are closer to…
Q: What diameter lens do you need on a telescope that can resolve up to a thousandth of a second?
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Q: Give at least three reasons why reflecting telescopes are superior to refractors.
A: Telescopes are optical devices that collect light from distant objects to form an image or a sensor.…
Q: For a converging lens the object is 10 cm from the lens and the image is 24 cm from the lens on the…
A: Given Converging lens Object is 10 cm Image is 24 cm on opposite side Magnitfication
Q: The primary mirror on a telescope has a 52 m radius of curvature and the eyepiece has a focal length…
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Q: A converging lens with a focal length of +6.0 cm is placed 4.0 cm in front of a diverging lens with…
A: Given:focal length of converging lens, f1 = + 6.0 cmfocal length of the diverging lens, f2 = −2.5…
Q: Q5: A refracting telescope has the objective lens of focal length (10 m). Assume it is used with an…
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Q: If you increase the focal length of a telescope's eyepiece with no other changes, then the telescope…
A: A telescope is an optical instrument that collects and magnifies the light coming from distant…
Q: Let's say we're considering one particular telescope. If we want to see a bigger piece of the sky,…
A: The correct option
Q: Define magnifying power of a telescope. Write its expression.A small telescope has an objective lens…
A: The magnifying power of the telescope is the ratio of the angle subtended at the eye by the image to…
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- The focal length from a simple lens is 100 micrometers and the detector is at 500 micrometers. What is the magnification of the lens?If a magnifying glass is behing held at the exact spot that creates a maximum magnification and the magnification is +10, what would be the focal length on the lens.For a converging lens the object is 12 cm from the lens and the image is 12 cm from the lens on the opposite side. What the magnification of the image?
- What is the focal length of a lens that focuses a real image of an object that is 5 m ahead of the lens on a screen 3 m behind the lens?The primary mirror on a telescope has a 43m radius of curvature and the eyepiece has a focal length of 36 mm. Determine the maginification and length of the telescope (for length, treat telescope as a refracting telescope) M = ___ L =______A telescope is used to resolve two distant stars. By what factor will the resolution of the telescope change if the diameter of the lens is doubled? a)The resolution will increase by a factor of 4 b)The resolution will increase by a factor of 2 c)The resolution will not change, although more light will be collected. d)The resolution will decrease by a factor of 2 e)The resolution will decrease by a factor of 4 f)
- A slide projector has a magnification of 60. How tall will the projected image be if the slide is 3.2 cm tall?The 200-inch-diameter concave mirror of the Hale telescope on Mount Palomar has a focal length of 16.9 m An astronomer stands 20.0 m in front of this mirror Where is her image located? Is it in front of or behind the mirror?