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MiniUSB

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Devise an arrangement of mirrors allowing you to see the back of your head. What is the minimum number of mirrors needed for this task?

USBD

A light bulb is placed 10 cm from a plane mirror, which faces a convex mirror of radius of curvature \(8 \mathrm{cm}\) The plane mirror is located at a distance of \(30 \mathrm{cm}\) from the vertex of the convex mirror. Find the location of two images in the convex mirror. Are there other images? If so, where are they located?

USB porttypes

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USBconnector types chart

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What is the focal length of a magnifying glass that produces a magnification of 3.00 when held \(5.00 \mathrm{cm}\) from an object, such as a rare coin?

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An object is located in water \(30 \mathrm{cm}\) from the vertex of a convex surface made of Plexiglas with a radius of curvature of \(80 \mathrm{cm} .\) Where does the image form by refraction and what is its magnification? \(n_{\text {water }}=4 / 3\) and \(n_{\text {Plexiglas }}=1.65\)

What is the magnification of a magnifying lens with a focal length of \(10 \mathrm{cm}\) if it is held \(3.0 \mathrm{cm}\) from the eye and the object is \(12 \mathrm{cm}\) from the eye?

USB B

Average Time to Ship 1-3 Days, extra ship charges may apply. Please see product page, cart, and checkout for actual ship speed.

Free delivery to Canada on orders of $100 CAD or more. A delivery charge of $8 CAD will be billed on all orders less than $100 CAD.