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February 13 AP Physics

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Pay for AP Exam!.

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In: If a clear liquid has a refractive index of 1.45 and a transparent solid has an index of 2.90 then, for total internal reflection to occur at the interface between these two media, which of the following must be true? Incident beamat an angle of originates in: incidence greater than: a) the solid30 o b) the liquid30 o c) the solid60 o d) the liquid60 o e) Total internal reflection cannot occur.

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Objective: To understand lenses and combinations of lenses and mirrors. Success Criteria: be able to calculate lens mirror combinations.

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Lab: images formed by converging lenses

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Ray diagrams 1.Ray comes in parallel, goes out thru principle f 2.Ray comes in thru secondary f, out parallel 3.Ray comes in thru C, straight thru

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Lens combinations imageobjectThe image of the first becomes the object of the second. productTotal magnification for the system is the product of the magnifications of each lens.

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Two converging lenses, each of focal length 15.0 cm, are placed 40.0 cm apart, and an object is placed 30.0 cm in front of the first lens. Where is the final image formed, and what is the magnification of the system?

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An object is placed 20.0 cm to the left of a converging lens of focal length 25.0 cm. A diverging lens of focal length 10.0 cm is 25.0 cm to the right of the converging lens. Find the position and magnification of the final image.

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A converging lens is placed 30.0 cm to the right of a diverging lens of focal length 10.0 cm. A beam of parallel light enters the diverging lens from the left, and the beam is again parallel when it emerges from the converging lens. Calculate the focal length of the converging lens.

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The lens and mirror are separated by 1.00 m and have focal lengths of +80.0 cm and 50.0 cm, respectively. If an object is placed 1.00 m to the left of the lens, locate the final image. State whether the image is upright or inverted, and determine the overall magnification.

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Two converging lenses having focal lengths of 10.0 cm and 20.0 cm are placed 50.0 cm apart. The final image is to be located between the lenses, at the position indicated. (a) How far to the left of the first lens should the object be positioned? (b) What is the overall magnification of the system? (c) Is the final image upright or inverted?

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