A 1.38 m-long Galilean telescope has an eyepiece lens with focal length -4.58 cm. Determine the lens power of the telescope. Give your answer in m-1, correct to 2d.p.
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A 1.38 m-long Galilean telescope has an eyepiece lens with focal length -4.58 cm. Determine the lens power of the telescope.
Give your answer in m-1, correct to 2d.p.
The answer is NOT 0.70 or 0.75
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- A 1.38 m-long Galilean telescope has an eyepiece lens with focal length -4.58 cm. Determine the lens power of the telescope. Give your answer in m-1, correct to 2d.p.The Yerkes refracting telescope has a 1-m diameter objective lens of focal length 21 m and an eyepiece of focal length 2.0 cm. What is the magnification of the planet Mars as seen through this telescope? Blank 1. Calculate the answer by read surrounding text.Use diagrams to describe how the following types of telescope collect light from a single point- source at infinity, and form a focused image in the focal plane: (i) refractor (ii) Newtonian reflector (iii) catadioptric telescope. A telescope with focal ratio f/10 and diameter D = 0.5 m has a CCD detector placed at its focal plane. The CCD chip has dimensions 3 × 3 cm2 . Determine the size of the field of view that can be imaged on the CCD detector in units of arcminutes × arcminutes, and state whether or not an image of the full moon can be captured. Assume the angular diameter of the full moon is 30 arcminutes.
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- A telescope is focused to infinity. The lenses of the telescope are +1.5 and +15 diopters. What is the length of this telescope?The primary mirror on a telescope has a 52 m radius of curvature and the eyepiece has a focal length of 13 mm. Determine the magnification & length of the telescope (for the length, treat the telescope as if it were a refracting telescope). M = L = 11 -/1 Pointsl DETAILSSaturn has an angular diameter of 20 arcseconds (9.7×10-5 rad). You want to observe Saturn with a telescope. The focal length of the telescope’s objective is 1100 mm. To see Saturn’s rings clearly, you want the telescope to have a magnification of -50. What is the focal length of the eyepiece you need for this observation? What is the distance between the objective and the eyepiece?
- What is the field of view when a CCD detector of dimensions 15 mm x 15 mm is used with a telescope that has a diameter of 1 metre and a focal ratio f/10? Express your answer in arcseconds x arcseconds. Choose the answer below that best matches your answer. Select one: О а. 68 x 68 оb. 698 х 698 С. 125 х 125 O d. 243 x 243 е. 309 х 30910. A small telescope has an objective lens of focal length 144 cm and an eye-piece of focal length 6.0 cm. What is the magnifying power of the telescope? What is the separation between the objective and the eye-piece?4.2 An object is 8 cm in front of a converging lens that has a focal length of 12 cm. Calculate how far in front of the lens should the object be placed so that the size of its image is increased by a factor of 2.0. 4.3 The radioactive cobalt isotope, Co, has an half-life of 63 months and undergoes decay. The molar mass of 6°CO is 59.9338222 amu. A sample initially contains 48 mg of 6°CO. (a) Calculate the number of moles of 6Co that are left in the sample after 5.0 years. (b) Calculate the activity of 60CO after 5.0 years, in units of per month (month-).