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Q1. An underwater camera has a lens of focal length 35.0 mm, a maximum aperture of...

Q1. An underwater camera has a lens of focal length 35.0 mm, a maximum aperture of f/2.80, and the detector is sensitive to light of wavelength 650 nm. If a diver uses the camera to photograph a fish which is 3.1 m in front of the camera with the lens wide open, what is the width of the smallest resolvable detail on the image of the fish? Assume a value of 1.50 for the refractive index of water.

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