define the following terms:
1.mirror
2.lens
Answers
Answer:
1. Mirror :a surface, typically of glass coated with a metal amalgam, which reflects a clear image.
2. A lens is a transmissive optical device that focuses or disperses a light beam by means of refraction. Lenses are made from materials such as glass or plastic, and are ground and polished or molded to a desired shape. A lens can focus light to form an image, unlike a prism, which refracts light without focusing.
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Answer:
1) A mirror is an object that reflects an image. Light that bounces off a mirror will show an image of whatever is in front of it, when focused through the lens of the eye or a camera.
2) Lens: A lens is a piece of a refracting medium bounded by two surfaces, at least one of which is a curved surface. The commonly used lenses are the spherical lenses, which have either both surfaces spherical or one spherical and the other a plane one. ...