Which of the following describes how a refracting telescope works? A. It uses two convex lenses to gather and focus light from distant objects B. It uses only mirrors to collect and focus light from distant objects C. It uses both mirrors and lenses to collect and focus light from distant objects

Q: Define resolution and state why is it important in distinguishing magnified objects Define contrast…

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Q: What is light meter? Explain its uses

A: Light meter:A ‘light meter’ is a handheld device that used measure or ‘meter’ light.

Q: The thin lens equation below describes the relationships between the distance of an object from the…

A: In the given question, given that the relation between distance of an object from the lens and…

Q: If you increase the size of a telescope's mirror (without changing the focal length), the telescope…

A: Increasing the size of telescope will increase APERTURE of mirror that leads to more light…

Q: Magnifying power of a simple microscope is inversely proportional to the focal length of the lens.…

A: Grinding lenses of very small focal lengths is not very easy.

Q: Create a diagram showing how light bounces off a mirror.  Include the following labels: incident…

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Q: Telescopes do more than just magnify images. In fact, if all they did was magnify images Galileo…

A: A Telescope is able to gather more light as compared to the normal eye and thus it can make us view…

Q: You go to a strange restaurant that has all of their menu items up on a big board, represented only…

A: Given:  We need to find how images are formed on right eye retina.

Q: The light-gathering power of a telescope is directly related to the area of the telescope's primary…

A: The light collecting area of the primary mirror is

Q: The distance between an object and it's real image in a convex lens is 40cm.if the magnification of…

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Q: Telescope A has a 5 in. diameter whereas Telescope B has a 12 cm diameter. Which telescope gathers…

A: The brightness of an image from a telescope depends on how amount of light is gathered by the…

Q: A particular convex lens has a focal length of 15 cm, and an object is placed at the focal point.…

A: Consider the distance of image formed by the given convex lens be v, the distance of the object from…

Q: In your own words, what natural light and artificial light

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Q: Some telephoto cameras use a mirror rather than a lens. What radius of curvature mirror is needed to…

A: The relationship between the radius of curvature and focal length of a mirror is given by,

Q: Compare reflecting telescope and refracting telescope Point of Comparison Reflecting Telescope…

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Q: Light waves come in different wavelengths and frequencies. The color of the light we see is…

A: When the sunlight strikes on a falling drop of water the light get refracted, the light continues…

Q: When an object is placed 5 cm from a lens, the image created is upright and 1.7 times larger.…

A: Position of the image,  Magnification of the image,

Q: When astronomers discuss the apertures of their telescopes, they say bigger is better. Explain why.…

A: The aperture of a telescope is crucial because it determines the brightness of the planetary or…

Q: The light-gathering power of a telescope is directly related to the area of the telescope's primary…

A: It is given that the light-gathering power is directly proportional to the area of the mirror.

Q: The moon is 3.5 × 106 m in diameter and 3.8 × 108 m from the earth’s surface. The 1.2-m-focal-length…

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Q: The diagram shows a person and her twin at equal distances on opposite sides of a thin wall. Suppose…

A: We can use the concept of ray optics here. To get the full image of the object of height h, we…

Q: Draw the light path for a Newtonian style reflecting telescope. Be sure to label all the parts and…

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Q: Compare the light-gathering power of a 10 m Keck telescope with that of a 0.8 m telescope.

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Q: Construct 3 scaled ray diagrams using mirrors with an 8.0 cm radius of curvature.  Clearly label…

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Q: Use diagrams to describe how the following types of telescope collect light from a single point-…

A: (i) Ray from far object is focused by objective lens (Convex lens) . Since image formed when object…

Q: The field of view of a microscope with a 16x eyepiece lens and a 4x objective lens is 4.3 mm. What…

A: Solution: Given: 1 μm = 10-3 mm = 10-6 m  FOV1 = initial field of view of microscope = 4.3 mm OM1 =…

Q: Large telescopes are usually reflecting rather than refracting. List some reasons for this choice.

A: The reflecting telescopes can be made larger to be able to gather as much as light as possible. The…

Q: The focal points for a double convex lens are located 15 inches from the optical center. A 6 inch…

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Q: A typical hobby telescope has an objective lens with a 700 mm focal length and an eyepiece with a 25…

A: Given, Focal length of objective lens,fo=700 mm=70 cm,Focal length of eyepiece, fe=25 mm=2.5…

Q: Describe the path of a light ray through a prism or lens.

A: Light ray through the prism and lens

Q: Draw the light path for a Refracting telescope. Be sure to label all the parts and describe the…

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Q: Write the formula of lense and explain the meaning of symbols used.

A: Lens formula is an equation relating the focal length, distance of image, and distance of object for…

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…

Q: Explain spectroscopy as a study within astronomy. Include the following information: how the process…

A: Basically, we have two types of spectrum which are: Emission spectra: As every element releases…

Q: how high is the image of a 1.5 mm high object that is magnified by 20X lens system

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Q: What is the area, in square meters, of 12 m telescope? ______ m^2

A: Given value--- diameter of circular lens of telescope = 12 m. We have to find--- area ?

Q: 1- A 4.00-cm tall light bulb is placed a distance of 45.7 cm from a double convex lens having a…

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