What is the new cylinders resistance in ohms
A metal cylinder, which has length L and a resistance of 4 Ohms, is melted down to form a new cylinder with twice the length but the same density and mass. What is the new cylinder's resistance in Ohms ?
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A light ray of wavelength 550 nm initially in water enters a transparent substance at an angle of 37 degrees with respect to the normal and the transmitted ray is refracted at an angle of 25 degrees. (a). Calculate the speed of light in the transp
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