What is a common way to correct nearsightedness?
place a concave lens in front of the eye.
place a convex lens in front of the eye.
o place a flat lens in front of the eye.

Place a concave lens in front of the eye.

Explanation:

Hi, a common way to to correct nearsightedness is to Place a concave lens in front of the eye.

These types of lenses are usually used in eyeglasses that correct nearsightedness.

The problem that nearsighted people have is that the distance between the eye's lens and retina is longer than it should be. It makes impossible to distinguish distant objects.

Placing concave lenses in front of a nearsighted eye reduces the refraction of light and lengthens the focal length so that the image is formed on the retina.

electromagnetic shielding is the practice of reducing the electromagnetic field in a space by blocking the field with barriers made of conductive or magnetic materials. shielding is typically applied to enclosures to isolate electrical devices from their surroundings, and to cables to isolate wires from the environment through which the cable runs. electromagnetic shielding that blocks radio frequency electromagnetic radiation is also known as rf shielding.

the shielding can reduce the coupling of radio waves, electromagnetic fields and electrostatic fields. a conductive enclosure used to block electrostatic fields is also known as a faraday cage. the amount of reduction depends very much upon the material used, its thickness, the size of the shielded volume and the frequency of the fields of interest and the size, shape and orientation of apertures in a shield to an incident electromagnetic

from wikipedia

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