The primary purpose of polarized sunglasses is_____.a.
to block ultraviolet rays.
b.
to block infrared rays.
c.
to block glare from reflections (for example off lakes or roads).
d.
to look cool.

The primary purpose of polarized sunglasses is to block glare from reflections (for example off lakes or roads). The correct option is C.

What is polarized sunglasses?

Polarized sunglasses are a type of eyewear that has a special filter that blocks intense, reflected light and reduces glare. The filter is oriented vertically, allowing only the vertical component of light waves to pass through, while blocking the horizontal component. This reduces the glare from flat surfaces, such as water or snow, which can be distracting and even dangerous. Polarized sunglasses also enhance contrast and provide clearer vision, making them popular among athletes and outdoor enthusiasts. They are especially useful for activities such as fishing, boating, skiing, and driving. Polarized sunglasses can come in a variety of styles and lens colors, and can be worn in both prescription and non-prescription forms.

eEre in the Question,

Option a, to block ultraviolet rays, is true to some extent. Polarized sunglasses may have UV-blocking properties, but their primary purpose is not to block UV rays.

Option b, to block infrared rays, is not true. Polarized sunglasses are not designed to block infrared rays.

Option d, to look cool, is not true. While some people may wear polarized sunglasses for fashion purposes, their primary purpose is to reduce glare and improve visibility.

Therefore, The correct option is C. to block glare from reflections (for example off lakes or roads).

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