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A figure separated into squares, each of size 1 mm2 is being viewed at a distance of 9cm by a magnifying lens of local length 10cm, held close to the eye.
(i) Illustrate a ray diagram showing the formation of the image.
(ii) What is the magnification formed by the lens? How much is the area of each square in the virtual image?
(iii) What is the angular magnification of the lens?
what is cruisiing mean
Verify Biot-Savart law. Use it to derive an expression for the magnetic field at the centre of a circular loop of radius R carrying a steady current I. Sketch the magnetic field li
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The p.d.'s calculated across three resistors linked in series are 5V, 7V and 10V, and the supply current is 2A. Determine (a) The supply voltage, (b) The total circuit res
what is dynamics
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When a plane is in flight, the entire weight of the aircraft is essentially supported by the wings. To help you with this problem, it will be best if you visualize holding a model
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