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The focal length of
a lens is NOT dependent on the
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A. |
Distance of the object from the
lens. |
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The
distance of the object determines where the image occurs for a specific
lens but does not change the focal length.
The Correct Answer is A. |
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B. |
Curvature of the lens |
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For
the same material, diameter, and color of light, the greater the
curvature; the shorter the focal length. |
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C. |
Color of light incident on the
lens |
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Different
colors of light have different indexes of refraction. It does
create different focal lengths for different colors. It is also the
reason chromatic aberration occurs with lens. |
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D. |
Material used to make the lens |
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Different
materials have different indexs of refraction. |
