Which of these factors determine the focal length of a lens? (Tick all that apply) Select...
Which of these factors determine the focal length of a lens? (Tick all that apply)
Select one or more:
a. Material the lens is made of
b. Diameter of the lens
c. Radius of curvature of the lens
d. Material around the lens
Homework Answers
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Which of these factors determine the focal length of a lens?
(Tick all that apply)
Select...
All rays that are parallel to the principle axis in a concave mirror reflects Select one:...
All rays that are parallel to the principle axis in a concave mirror reflects Select one: O a. Towards the focal point O b. Away from the focal point O c. Away from the center of curvature O d. Towards the center of curvature Which statements are true about a VIRTUAL image? (There may be more than one correct choice.) Select one or more: a. A concave lens always forms a virtual image. b. It cannot be photographed. c. A...
A "biconvex" lens is one in which both surfaces of the lens bulge outwards. Suppose you...
A "biconvex" lens is one in which both surfaces of the lens bulge outwards. Suppose you had a biconvex lens with radii of curvature with magnitudes of |R1|=10cm and |R2|=15cm. The lens is made of glass with index of refraction nglass=1.5. We will employ the convention that R1 refers to the radius of curvature of the surface through which light will enter the lens, and R2 refers to the radius of curvature of the surface from which light will exit...
20) A lens is made with a focal length of -40 cm using a material with...
20) A lens is made with a focal length of -40 cm using a material with index of refraction 1.50. A second lens is made with the SAME GEOMETRY as the first lens, but using a material having refractive index of 2.00. What is the focal length of the second lens? E) -53 cm A) -30 cm B) -80 cm C) -40 cm D) -20 cm
The focal length of a diverging lens is negative. If f = −23 cm for a...
The focal length of a diverging lens is negative. If f = −23 cm for a particular diverging lens, where will the image be formed of an object located 32 cm to the left of the lens on the optical axis? ______cm to the left of the lens? What is the magnification of the image? b. A small object is placed to the left of a convex lens and on its optical axis. The object is 29 cm from the...
Last/First Name (print): PHYS 2240-Section Usename ID sppy Experiment 1: Focal Length of a Lens and...
Last/First Name (print): PHYS 2240-Section Usename ID sppy Experiment 1: Focal Length of a Lens and a Mirror Not re: Be certain to read the whole experiment to answer these questions. Pre-lab, Part A 1. During the first part of this lab, we want to determine how the object distance is related to what two quantities? 2. How will a convex lens change the image of an object? Explain your answer Pre-lab, Part B 3. Name two examples of spherical...
You need to make a plano-concave lens with a focal length of +15 cm out of...
You need to make a plano-concave lens with a focal length of +15 cm out of glass with an index of 1.60. Plano-concave means that one side is flat. You then form an image with the lens of an object that is 1 cm tall and that is 25 cm from the lens. (a) Find the radius of curvature of the curved side of the lens. (b) How far is the image formed from the lens? (e) How big is...
A spherical lens has a magnification is +3.0. (a) Determine the focal length in terms of...
A spherical lens has a magnification is +3.0. (a) Determine the focal length in terms of the object distance. (b) Suppose the object is located 6.0 cm to the left of the mirror. What are the focal length and image distance? (c) Is the lens concave or convex? (d) Using a ray diagram, confirm the locations of the image and focal point.
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.
Chapter 34, Problem 041 A lens is made of a transparent material having an index of...
Chapter 34, Problem 041 A lens is made of a transparent material having an index of refraction of 1.40. One side of the lens is flat, and the other convex with a radius of curvature of 24.0 cm. (a) Find the focal length of the lens. (b) If an object is placed 120 cm in front of the lens, where will the image be located? (a) Number Units (b) Number Units
A teacher is examining laboratory supplies with a diverging lens. The lens has a focal length...
A teacher is examining laboratory supplies with a diverging lens. The lens has a focal length of magnitude 19.2 cm. The lens is always held between the teacher's eye and the object under study. However, the distance between the lens and the object is different for each object that the teacher observes. Determine the image location and magnification for each of the following three objects. In addition, determine whether the image is real or virtual, whether it is upright or...
All rays that are parallel to the principle axis in a concave mirror reflects Select one: O a. Towards the focal point O b. Away from the focal point O c. Away from the center of curvature O d. Towards the center of curvature Which statements are true about a VIRTUAL image? (There may be more than one correct choice.) Select one or more: a. A concave lens always forms a virtual image. b. It cannot be photographed. c. A...
20) A lens is made with a focal length of -40 cm using a material with index of refraction 1.50. A second lens is made with the SAME GEOMETRY as the first lens, but using a material having refractive index of 2.00. What is the focal length of the second lens? E) -53 cm A) -30 cm B) -80 cm C) -40 cm D) -20 cm
Last/First Name (print): PHYS 2240-Section Usename ID sppy Experiment 1: Focal Length of a Lens and a Mirror Not re: Be certain to read the whole experiment to answer these questions. Pre-lab, Part A 1. During the first part of this lab, we want to determine how the object distance is related to what two quantities? 2. How will a convex lens change the image of an object? Explain your answer Pre-lab, Part B 3. Name two examples of spherical...
You need to make a plano-concave lens with a focal length of +15 cm out of glass with an index of 1.60. Plano-concave means that one side is flat. You then form an image with the lens of an object that is 1 cm tall and that is 25 cm from the lens. (a) Find the radius of curvature of the curved side of the lens. (b) How far is the image formed from the lens? (e) How big is...
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.
Chapter 34, Problem 041 A lens is made of a transparent material having an index of refraction of 1.40. One side of the lens is flat, and the other convex with a radius of curvature of 24.0 cm. (a) Find the focal length of the lens. (b) If an object is placed 120 cm in front of the lens, where will the image be located? (a) Number Units (b) Number Units
A teacher is examining laboratory supplies with a diverging lens. The lens has a focal length of magnitude 19.2 cm. The lens is always held between the teacher's eye and the object under study. However, the distance between the lens and the object is different for each object that the teacher observes. Determine the image location and magnification for each of the following three objects. In addition, determine whether the image is real or virtual, whether it is upright or...
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