A concave lens forms a virtual image 0.5 times the size of the object. The distance between object and image is 5.4 cm. Find the focal length of the lens. Answer in units of cm.
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Q: A concave lens of focal length 9.7 cm has an object located on its principal axis, 41.8 cm from the…
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Q: concave mirror has the focal length equal to 0.508 m. To form a real image that is triple the size…
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Q: A concave spherical mirror forms a real image 1.36 times the size of the object. The object distance…
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Q: An artist wishes to form a virtual image of a crystal at a distance of 10.8 cm behind a convex…
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Q: A double-convex thin lens is made of glass with an index of refraction of 1.55. The radii of…
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Q: A technician wishes to form a virtual image of a crystal at a distance of 16.1 cm behind a concave…
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Q: an object of 1 cm in height is placed 28 cm in front of a concave mirror with a focal length of 9.4…
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Q: A contact lens is made of plastic with an index of refraction of 1.40. The lens has an outer radius…
A: Given data :- Refractive index n = 1.40 R1 = +1.90 cm (outer radius)R2 = +2.42 cm (inner radius)
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Q: The focal length of a concave mirror has a magnitude of 20 cm. What is its radius of curvature?
A: Focal length =20 cm
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- An optician is designing a contact lens. The material has is an index of refraction of 1.45. In order to yield the prescribed focal length, the optician specifies the following dimensions: inner radius of curvature = +2.60 cm outer radius of curvature = +1.98 cm where the inner radius of curvature describes the surface that touches the eye, and the outer radius of curvature describes the surface that first interacts with incoming light. What is the focal length of this contact lens (in cm)?A convex lens has a focal length of 13 cm. A candle with a height of 7 cm is 7 cm away from the lens. Find the location of the image. If the image is real give a positive answer and a virtual image should be a negative answer.A 2.25-cm-high object is placed 4.00 cm in front of a concave mirror. If the image is 6.00 cm high and virtual, what is the focal length of the mirror? cm
- A spherical, concave shaving mirror has a radius of curvature of 0.476 m. What is the magnification of a person's face when it is 0.155 m from the vertex of the mirror (answer sign and magnitude)?A thin, convex lens with a focal length of 6.0 cm is used to form images. A variety of object distances will be used. Sort the object distances below according to what type of image will be formed. No image Virtual image Real image Answer Bank 6.0 cm 7.0 cm 12.5 cm 2.5 cm 0.5 cm 4.5 cmAn optician is designing a contact lens. The material has is an index of refraction of 1.35. In order to yield the prescribed focal length, the optician specifies the following dimensions: inner radius of curvature = +2.60 cm outer radius of curvature = +2.06 cm where the inner radius of curvature describes the surface that touches the eye, and the outer radius of curvature describes the surface that first interacts with incoming light. What is the focal length of this contact lens (in cm)? answer in cm
- A plane convex lens is made of glass ( n = 1.5) with one flat surface and the other having a radius of 30 cm. What is the focal length (in cm) of the lens?An object is placed 40 cm in front of a thin lens. If an image forms at a distance 120 cm from the lens, on the same side as the object, what is the focal length of the lens, in cm? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.A concave spherical mirror has a radius ofcurvature of 35 cm . The object distance is51.9 cm . Scale: 10 cm Find the magnitude of the image distance.Answer in units of cm.
- An object located 1.17 cm in front of a spherical mirror forms an image located 11.3 cm behind the mirror. (a) What is the mirror's radius of curvature (in cm)? cm (b) What is the magnification of the image?An artist wishes to form a virtual image of a gemstone at a distance of 11.6 cm behind a convex mirror. The mirror has a focal length of magnitude 15.2 cm. (a) Where should he place this object? (Enter your answer in cm in front of the mirror.) cm in front of the mirror (b) What magnification characterizes the image that the artist wishes to create?An optician is designing a contact lens. The material has is an index of refraction of 1.60. In order to yield the prescribed focal length, the optician specifies the following dimensions: inner radius of curvature = +2.56 cm outer radius of curvature = +2.10 cm where the inner radius of curvature describes the surface that touches the eye, and the outer radius of curvature describes the surface that first interacts with incoming light. What is the focal length of this contact lens (in cm)?