Underwater Photography. An underwater camera has a lens with focal length in air of 35.0 mm and a maximum aperture of f /2.80. The film it uses has an emulsion that is sensitive to light of frequency 6.00 × 10 14 Hz. If the photographer takes a picture of an object 2.75 m in front of the camera with the lens wide open what is the width of the smallest resolvable detail on the subject if the object is (a) a fish underwater with the camera in the water and (b) a person on the beach with the camera out of the water?
Underwater Photography. An underwater camera has a lens with focal length in air of 35.0 mm and a maximum aperture of f /2.80. The film it uses has an emulsion that is sensitive to light of frequency 6.00 × 10 14 Hz. If the photographer takes a picture of an object 2.75 m in front of the camera with the lens wide open what is the width of the smallest resolvable detail on the subject if the object is (a) a fish underwater with the camera in the water and (b) a person on the beach with the camera out of the water?
Underwater Photography. An underwater camera has a lens with focal length in air of 35.0 mm and a maximum aperture of f/2.80. The film it uses has an emulsion that is sensitive to light of frequency 6.00 × 1014 Hz. If the photographer takes a picture of an object 2.75 m in front of the camera with the lens wide open what is the width of the smallest resolvable detail on the subject if the object is (a) a fish underwater with the camera in the water and (b) a person on the beach with the camera out of the water?
An underwater camera has a lens with focal length in air of 35.0 mm and a maximum aperture of f/2.80. The film it uses has an emulsion that is sensitive to light of frequency 6.00 x 1014 Hz. If the photographer takes a picture of an object 2.75 m in front of the camera with the lens wide open, what is the width of the smallest resolvable detail on the subject if the object is (a) a fish underwater with the camera in the water and (b) a person on the beachwith the camera out of the water?
A lens coated with a thin layer of material having a refractive index 1.45 reflects the least amount of light at wavelength 590nm. Assume the refractive index of the lens material to be 1.70.
Determine the minimum thickness of the coating.
Q. In a Newton’s ring arrangement with air film observed with the light of wavelength 6× 10-5 cm, the difference of squares of diameters of successive rings is 0.125 cm2. What will happen to this quantity if:
(a)Wavelength of light is changed to 4.5 × 10-5 cm.
(b)A liquid of refractive index 1.33 is introduced between the lens and the plate.
(c)The radius of curvature of the convex surface of the plano-convex lens is doubled.
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