The focal lenght of a simple magnifier is 9.15 cm. (A) where must we place an...
The focal lenght of a simple magnifier is 9.15 cm. (A) where must we place an object in order to get the maximal magnification? (B) with the conditions in (A), if the object height is 4.5mm, what is the height of the image?
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The focal lenght of a simple magnifier is 9.15 cm. (A) where
must we place an...
A stamp collector uses a lens with 7.2-cm focal length as a simple magnifier. The virtual...
A stamp collector uses a lens with 7.2-cm focal length as a simple magnifier. The virtual image is produced at the normal near point (25 cm). (a) How far from the lens should the stamp be placed? ____cm (b) What is the expected angular magnification?
The focal length of a simple magnifier is 8.50cm. Assume the magnifier to be a thin lens placed very close to the ey...
The focal length of a simple magnifier is 8.50cm. Assume the magnifier to be a thin lens placed very close to the eye. How far in front of the magnifier should an object be placed if the image is formed at the observer's near point, 25.0cm in front of her eye? If the object is h=1.30 mm high, what is the height of its image formed by the magnifier?
An object is placed 16.4 m infront of a converging lens of focal lenght f1=40 cm....
An object is placed 16.4 m infront of a converging lens of focal
lenght f1=40 cm. On the other side of the lens, there is a
diverging lens of focal lenght f2=4 cm, seperated from the first
lens by a distance of 36.9 cm.
A) Where if the final image formed?
b) What is the magnification and what is the angular
magnification and how does the angular magnigifcation compare to
the telescipe formula?
C) Support your conclusion by drawing an...
To view an enlarged upright image of an object through a simple magnifier, where must the object be located? Which choic...
To view an enlarged upright image of an object through a simple magnifier, where must the object be located? Which choice is it below? (A) at the near point (B) at the focal point of the lens (C) within the focal length of the lens (D) between the near point and focal point (E) within the focal length of the lens, provided the focal length is shorter than the near point distance
The focal length of a lens is 4.5 cm. Calculate the maximum angular magnification of a simple...
The focal length of a lens is 4.5 cm. Calculate the maximum angular magnification of a simple magnifier when the image is formed at the normal near point of the eye.
The focal length of a lens is 4.6 cm. Calculate the maximum angular magnification of a simple...
The focal length of a lens is 4.6 cm. Calculate the maximum angular magnification of a simple magnifier when the image is formed at the normal near point of the eye.
A convex lens has a focal length of 14.5 cm. Where on the lens axis should...
A convex lens has a focal length of 14.5 cm. Where on the lens axis should an object be placed in order to get a virtual, enlarged image with a magnification of 1.70? Answer in cm.
A person can focus clearly only on objects between 33.5 cm and 51.5 cm from his...
A person can focus clearly only on objects between 33.5 cm and 51.5 cm from his eyes. Find the focal lengths of the correcting contact lenses needed to correct his closeup vision and distant vision. Find the powers of the correcting contact lenses needed to correct his closeup vision and distant vision. Answer in the order indicated. Separate your answers with a comma. You want to view an insect 2.20 mm in length through a magnifier. If the insect is...
A concave mirror has a focal length 55 cm. Where should you place an object to...
A concave mirror has a focal length 55 cm. Where should you place an object to get a real image at: a) 83.5 cm from the mirror? b) 1.8 m from the mirror? Explain the outcome of your calculations.
A concave lens has a focal length of -36 cm. Find the image distance and magnification...
A concave lens has a focal length of -36 cm. Find the image distance and magnification that results when an object is placed 19 cm in front of the lens. (Use the proper sign convention for both quantities.) When an object is located 61 cm to the left of a lens, the image is formed 25 cm to the right of the lens. What is the focal length of the lens? An object with a height of 2.22 cm is...
An object is placed 16.4 m infront of a converging lens of focal
lenght f1=40 cm. On the other side of the lens, there is a
diverging lens of focal lenght f2=4 cm, seperated from the first
lens by a distance of 36.9 cm.
A) Where if the final image formed?
b) What is the magnification and what is the angular
magnification and how does the angular magnigifcation compare to
the telescipe formula?
C) Support your conclusion by drawing an...
A concave lens has a focal length of -36 cm. Find the image distance and magnification that results when an object is placed 19 cm in front of the lens. (Use the proper sign convention for both quantities.) When an object is located 61 cm to the left of a lens, the image is formed 25 cm to the right of the lens. What is the focal length of the lens? An object with a height of 2.22 cm is...
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