Determine exposure time should be used with camera b

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Reference no: EM13240225

Camera A has a lens with an aperture diameter of 8.30mm. It photographs an object using the correct exposure time of 3.33×10?2s

What exposure time should be used with camera B in photographing the same object with the same film if this camera has a lens with an aperture diameter of 23.5mm? The lenses of cameras A and B have the same focal length.

Reference no: EM13240225

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