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Which of the following is true about lenses? Assume all lenses have the same diameter and...

Which of the following is true about lenses? Assume all lenses have the same diameter and are made of glass.

a) The best digital cameras have the smallest lenses.

b) The focal length of a lens is twice the distance from the center of a lens to the focal point.

c) A lens made with material with a lower refractive index has a shorter focal length.

d) A large diameter lens in a camera can only take pictures in bright light.

e) A thinner lens will have a longer focal length.

Science   Advanced-Physics   
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