A lens for a 35-mm camera has a focal length given by f
A lens for a 35-mm camera has a focal length given by f= 49mm .A. How close to the film should the lens be placed to form a sharp image of an object that is 5.3mm away?di=__mmB. What is the magnification of the image on the film?m=__
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a weight lifter lifts a 420 n set of weights from ground level to a position over his head a vertical distance of 170 m
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a concave lens has a focal length of -33 cm find the image distance and magnification that results when an object is
a lens for a 35-mm camera has a focal length given by f 49mm a how close to the film should the lens be placed to form
a parallel-plate capacitor has a capacitance of 10 mf and charged with a 20 v power supply the power supply is then
the density of free electrons in gold is 590 times 1028 m-3 the resistivity of gold is at a temperature of 20degc and
a laser beam is reflected by a plane mirror it is observed that the angle between the incident and reflected beams is
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