An astronomical telescope longer than about 50 cm isnot easy to hold by hand. Estimate the maximum angularmagnification achievable for a telescope designed to behandheld. Assume its eyepiece lens, if used as a magnifying glass, provides a magnification of 5X for a relaxed eyewith near point N=25cm

Q: Calculate the horizontal distance between the stafi and instrument, if the staff readings are 1.4 m…

A: Given data- Staff readings  S1=1.4 S2=2.9 To Find−The horizontal distance between the staff and…

Q: (a) What power contact lens is needed to correct the vision of a person who has a near point of 65.0…

A: SOlution: Given that v =65 cm u = 25 cm

Q: If the angular magnification of an astronomical telescope is 38 and the diameter of the objective is…

A: We are given diameter of objective lens and angular magnification, we can use these to calculate…

Q: A severely myopic patient has a far point of 5.11 cm. By how many diopters should the power of his…

A:

Q: The primary optical element of the Hubble Space Telescope (HST) is 3.2 m in diameter and has a focal…

A: If the image is coming from a distance u, the distance at which the image is formed v can be…

Q: The objective of a microscope has a focal length of 0.5 cm and forms the intermediate image 17.7 cm…

A: Given, Focal length, f= 0.5 cm, and image distance, di=17.7 cm+0.5 cm=18.2 cm.

Q: An optometrist has a patient who needs bifocals. The patient can clearly see an object when it is…

A:

Q: A telescope has an objective with a refractive power of 1.25diopters and an eyepiece with a…

A:

Q: eye piece of focal length 5 cm. The least distanc vision is 25 cm. The telescope is focused for…

A: Magnification of a telescope is actually a relationship between two independent optical systems: the…

Q: A 7.5× binocular produces an angular magnification of−7.50 , acting like a telescope. (Mirrors are…

A:

Q: A severely myopic patient has a far point of 8.92 cm. By how many diopters should the power of his…

A: Answer:-  P = power of eye  f = focal length of the eye lens do = The distance between the eye lens…

Q: (a) What power contact lens is needed to correct the vision of a person who has a near point of 55.0…

A: (a) What power contact lens is needed to correct the vision of a person who has a near point of 55.0…

Q: Astronomers often take photographs with the objec- tive lens or mirror of a telescope alone, without…

A: Formula to calculate objective focal length is,

Q: A

A: Near point=13.5 cm=13.5/100=0.135 m Far point=117 cm=117/100=1.17 m

Q: The eyepiece of a compound telescope has a focal length of 2.80cm and the objective lens has f=0.740…

A:

Q: And a telescope if you increase the focal length of a objective by a factor of nine by what factor…

A: We have given that focal length of the objective lens is increased by the factor of 9.  We need to…

Q: Another published set of refractive indices for the eye components has ncornea = 1.376, naqueous =…

A:

Q: An amateur astronomer decides to build a telescope from a discarded pair of eyeglasses. One of the…

A: Let P0 and Pe be the powers of the objective and the eye-piece lens respectively.

Q: A particular camera lens has a focal length of 200 mm. If it can take images of objects from 3…

A:

Q: (a) what power contact lens is needed to correct the vision of a person who has a near point of 72.0…

A: Given, Di=72cm Do=25cm

Q: A certain child's near point is 13.0 cm; her far point (with eyes relaxed) is 115 cm. Each eye lens…

A:

Q: If the lens-to-retina distance of a woman is 1.98 cm, and the relaxed power of her eye is 51.0 D...…

A:

Q: 1ou have a telescope witha85cm Jocallenath objective Recallthat Simpletwo-element telescopes invert…

A: Given: Focal Length of objective,fO=85cm=85×10-2mFocal Length of eyepiece,fE=1.75cm=1.75×10-2m The…

Q: The far point of a myopic administrator is 59.2 cm. (Assume a 2.0 cm distance between retina and…

A: (a) Let P denotes the power of the eyes, f denotes the focal length of the eye lens, u denotes the…

Q: A cataract - impaired lens in an eye may be surgically removed and replaced by a manufactured lens.…

A: a). When P tends to infinity, the image distnace is equal to the focal length q=f

Q: A person is nearsighted with a far point of 5 m. Spectacles that enable them to see distant objects…

A:

Q: Two converging lenses, one with f= 4.0cm and the otherwith f=48 cm  are made into a telescope. (a)…

A: Given: Focal length of first lens fe is 4.0 cm. Focal length of second lens fo  is 48 cm. Formula…

Q: What is the focal length of the eye–lens system whenviewing an object (a) at infinity, and (b) 34 cm…

A: Given data u=-34 cmv=2 cm

Q: erture, f10, Schmidt-Cassegrain telescope wit tre CCD camera having an effective area of 3.9 the…

A: In this question we have to answer some questions related to the telescope imaging Jupiter. please…

Q: An inexpensive instructional lab microscope allowsthe user to select its objective lens to have a…

A: Given: The user to select its objective lens to have a focal length of 32 mm, 15 mm, or 3.9 mm. It…

Q: A stargazer has an astronomical telescope with an objective whose focal length is 180 cm and an…

A: According to the given data, Focal length of the objective (f0) =180 cm Focal length of the eyepiece…

Q: (a) What power contact lens is needed to correct the vision of a person who has a near point of 76.0…

A:

Q: The lens-to-retina distance of a woman is 1.94 cm, and the relaxed power of her eye is 54.0 D. (a)…

A:

Q: A telescope is used to resolved two stars. Separated by 5.2 x 10-6 radian. If the wavelength of…

A:

Q: An astronomical telescope has an angular magnifi cation of -132. Itsobjective has a refractive power…

A:

Q: An elderly sailor is shipwrecked on a desert island, but manages to save his eyeglasses. The lens…

A: Part A:

Q: A magnifying glass is rated at 3.0 X for a normal eyethat is relaxed. What would be the…

A: To determine: The magnification for the relaxed eye for the near points, (a) 75 cm    and    (b)…

Q: A person with a normal lens-to-retina distance wears contact lenses with an optical power of 1.54 D…

A: Here, the optical power of lens used is positive. Hence, the lens used is a convex lens and the…

Q: A compound microscope with a 5 mm objective lens and an eyepiece with a bore length 30 mm and body…

A: Given, fo=5mmbody length L=18 cmBore length =30mm

Q: Assume that the anterior radius, posterior radius, and thickness of the lens are 9.4 mm, -5.6 mm,…

A: Consider a lens (convex) of refractive index nl is placed in the medium (inside aqueous and vitreous…

Q: The far point of a myopic administrator is 50.0 cm. (a)What is the relaxed power of his eyes? (b) If…

A: The expression for the power of the lens,

Q: In a compound microscope consisting of a 5 mm objective lens and an eyepiece (2.5 cm) eyepiece, an…

A: Given: fo=5 mmfe = 2.5 cm = 25 md=6 mm