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    Focal length and power of lens, Index of refraction of block material

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    3. A photographer wishes to take a picture of his pet chicken Fred, who happens to have a fine-face 5.0 cm high. While standing 2.0 m away, he selects a lens that will fill the film (24 mm top-to-bottom) with Fred's face. What is the focal length and power of the lens that should be used?

    4. Using a block of transparent, unknown material, it is found that a beam of light inside the material is totally internally reflected at the air-block interface at an angle of 48.0 degrees. What is the index of refraction of the block material?

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    https://brainmass.com/physics/light-refraction/focal-length-power-lens-index-refraction-block-material-310888

    Solution Preview

    3. A photographer wishes to take a picture of his pet checken Fred, who happens to have a fine-face 5.0 cm high. While standing 2.0 m away, he selects a lens that will fill the film (24mm top-to-bottom) with Fred's face. What is the focal length and power of the lens that ...

    Solution Summary

    Focal length and power of lenses are examined for the index of refraction of block.

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