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Physics, 11.01.2020 03:31 21marmong

Aconcave mirror with a radius of curvature of 20 cm has a focal length of

a. 40 cm
b. 20 cm
c. 10 cm
d. answer depends on the index of refraction of the air around the mirror

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Answers: 2

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Aconcave mirror with a radius of curvature of 20 cm has a focal length of

a. 40 cm
...
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