Explore BrainMass

Explore BrainMass

    Optics - Lens Power

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Reading glasses of what power (D) are needed for a person whose near point is 121cm, so that he can read a computer screen at 48.8cm? Assume a lens eye distance of 1.83cm.

    © BrainMass Inc. brainmass.com February 24, 2021, 2:22 pm ad1c9bdddf
    https://brainmass.com/physics/optics/optics-lens-power-16683

    Solution Preview

    Near point = 121 cm
    screen distance = 48.8.cm

    Because, lens distance from eye = 1.83 cm
    Hence, distance of object (screen) ...

    Solution Summary

    The solution is given step-by-step.

    $2.19

    ADVERTISEMENT