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1) (10 pts) Determine the focal length (including sign of the lens that could be used...
Determine the focal length (including sign) of the lens that could be used in eyeglasses to...
Determine the focal length (including sign) of the lens that could be used in eyeglasses to correct the following problems (N.P. = 25cm for normal vision): a) Kevin can’t see things clearly that are farther than 1.5m away b) Jerry can’t see things clearly that are closer than 1.5m away
2. A convex lens of focal length 24 cm and refractive index of glass is 1.5....
2. A convex lens of focal length 24 cm and refractive index of glass is 1.5. Find the foca length of this lens if it is totally submerged into water of refractive index 1.33. A far sighted person cannot see objects clearly that are closer to the eye than 73 cm Determine the focal length of contact lenses that will enable this person to read a magazine at a distance of 25 cm. 4.
Question 6 10 pts A camera with a 50.0 mm focal length lens is being used...
Question 6 10 pts A camera with a 50.0 mm focal length lens is being used to photograph a person standing 3.3 m away. How far from the lens must the film be? You need to express your answer in cm, do not include unit. Your answer should be a number with two decimal places.
6) 15 pts. Using a ruler and lens equation determine the focal length of the lens....
6) 15 pts. Using a ruler and lens equation determine the focal length of the lens. Show all work and indicate where you made your measurements. Light source is on the left ight-▲ ource c) 5 pts. What do think would happen to the location of the image above, if a diverging lens were put between the lens and the image. Draw the negative lens (in place) above. Explain your answer.
Giving an optical system compose of two lens system. Lens 1 focal length = 10-cm, Lens...
Giving an optical system compose of two lens system. Lens 1 focal length = 10-cm, Lens 2 focal length = 5-cm. The distance between the two lenses L = 50-cm. An object is 30 meter away from Lens 1, with height of 10-cm (a) Setup the equation, that solve the image location and the magnification, at each lens? (b) Solve the image location, magnification, and height at each lens? (c) If you want the object to have a final magnification...
1. Suppose a 250 mm focal length telephoto lens is being used to photograph mountains 13.0...
1. Suppose a 250 mm focal length telephoto lens is being used to photograph mountains 13.0 km away. (a) Where (in m) is the image? (b)What is the height (in cm) of the image of a 2500 m high cliff on one of the mountains? (Include the sign of the value in your answer.) 2. You place an object 18.0 cm in front of a diverging lens which has a focal length with a magnitude of 15.0 cm. Determine how...
Background information A person with normal vision can focus on objects as close as a few centimeters from the eye up...
Background information A person with normal vision can focus on objects as close as a few centimeters from the eye up to objects infinitely far away. There exist, however, certain conditions under which the range of vision is not so extended. For example, a nearsighted person cannot focus on objects farther than a certain point (the far point), while a farsighted person cannot focus on objects closer than a certain point (the near point). Note that even though the presence...
Question 3 1 pts If you wanted to decrease the focal length (f) of a lens....
Question 3 1 pts If you wanted to decrease the focal length (f) of a lens. You could do that by: O making the lens surface more curved, making the lens out of a lower n material O making the lens surface less curved, making the lens out of a higher n material O making the lens surface less curved, making the lens out of a lower n material O making the lens surface more curved, making the lens out...
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microsco...
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microscope A compound microscope uses two lenses to provide greater magnification of near objects than is possible using a single lens as a magnifier. The setup is shown above. The objective lens, L1, functions as a projector. The object is placed just beyond the focal point of L1 so a real, magnified, inverted image is formed. The eyepiece, L2, functions as a magnifier. It...
This is a two part question. Part 1. To look closely at a small object, such...
This is a two part question. Part 1. To look closely at a small object, such as an insect or a crystal, you bring it close to your eye, making the subtended angle and the retinal image as large as possible. But your eye cannot focus sharply on objects that are closer than the near point, so the angular size of an object is greatest when it is placed at the near point (25 cm away from a “normal” eye)....
2. A convex lens of focal length 24 cm and refractive index of glass is 1.5. Find the foca length of this lens if it is totally submerged into water of refractive index 1.33. A far sighted person cannot see objects clearly that are closer to the eye than 73 cm Determine the focal length of contact lenses that will enable this person to read a magazine at a distance of 25 cm. 4.
Question 6 10 pts A camera with a 50.0 mm focal length lens is being used to photograph a person standing 3.3 m away. How far from the lens must the film be? You need to express your answer in cm, do not include unit. Your answer should be a number with two decimal places.
6) 15 pts. Using a ruler and lens equation determine the focal length of the lens. Show all work and indicate where you made your measurements. Light source is on the left ight-▲ ource c) 5 pts. What do think would happen to the location of the image above, if a diverging lens were put between the lens and the image. Draw the negative lens (in place) above. Explain your answer.
Giving an optical system compose of two lens system. Lens 1 focal length = 10-cm, Lens 2 focal length = 5-cm. The distance between the two lenses L = 50-cm. An object is 30 meter away from Lens 1, with height of 10-cm (a) Setup the equation, that solve the image location and the magnification, at each lens? (b) Solve the image location, magnification, and height at each lens? (c) If you want the object to have a final magnification...
Question 3 1 pts If you wanted to decrease the focal length (f) of a lens. You could do that by: O making the lens surface more curved, making the lens out of a lower n material O making the lens surface less curved, making the lens out of a higher n material O making the lens surface less curved, making the lens out of a lower n material O making the lens surface more curved, making the lens out...
Experiment 22: The Compound Microscope f2 Object 2 1 (Objective Lens)d L, (Eyepiece) d#150mm The Compound Microscope A compound microscope uses two lenses to provide greater magnification of near objects than is possible using a single lens as a magnifier. The setup is shown above. The objective lens, L1, functions as a projector. The object is placed just beyond the focal point of L1 so a real, magnified, inverted image is formed. The eyepiece, L2, functions as a magnifier. It...
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