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Question 1- An illuminated test object is placed on an optical bench and a screen is placed 60 cm away. A converging lens is placed between the two, and a sharp image is formed on the screen when the lens is 20 cm away from the object.
Part A- What is the focal length of the lens?
Part B- Calculate the angular size in radians, and in degrees, of a dime at a distance of 5 meters.
You need help to illuminate the answer of the above question.
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A flywheel having constant angular acceleration requires 4.6-{rm s} to rotate through 162 rad. Its angular velocity at the end of this time is 100 rad/s. Find out the angular velocity at the beginning of the 4.6s interval; the angular acceleration..
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