A Person with Normal Eyesight Uses a Converging Lens of Focal

question 46

Short Answer

A person with normal eyesight uses a converging lens of focal length 10 cm. He holds the lens close to his eyes to finish an engraving job.
(a) What is the magnifying power of the lens?
(b) At what distance from the job he must hold the lens?

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Definitions:

Amplitude

In physics, it refers to the maximum extent of a vibration or oscillation, measured from the position of equilibrium.

Rods

Photoreceptors in the retina of the eye that are responsible for vision at low light levels, but cannot discern color.

Cones

Photoreceptor cells in the retina of the eye which function best in bright light and are responsible for color vision and high spatial acuity.

Retina

The light-sensitive layer of tissue at the back of the inner eye that converts light into neural signals.