Short Answer
A camera uses a biconvex lens made of glass with an index of refraction of 1.60 and has a radius of curvature of 12. cm for the 1st surface and 24. cm for the 2nd.
(a) What is the focal length of this lens when used in air?
(b) If used under water (n = 1.33), what is the focal length?
Correct Answer:
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(a) 13. cm...View Answer
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