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Questions and Answers

What is the purpose of a mirror?

To emit light

To absorb light

To refract light

To reflect an image (correct)

What allows the viewer to see objects behind them through a mirror?

The absorption of light by the mirror

The reversal of the image in the mirror (correct)

The refraction of light by the mirror

The emission of light by the mirror

What materials have been historically used to manufacture mirrors?

Stone and metals (correct)

Concrete and glass

Ceramics and textiles

Wood and plastics

What is the reason for using silver or aluminum in modern mirrors?

High reflectivity Signup and view all the answers

What property of light waves is demonstrated when they reflect from the flat surface of a mirror?

Wave reflection Signup and view all the answers

What is the difference between a simple lens and a compound lens?

A simple lens consists of a single piece of transparent material, while a compound lens consists of several simple lenses arranged along a common axis Signup and view all the answers

What is the purpose of a lens in imaging devices?

To focus light and form an image Signup and view all the answers

What other types of lenses are used to focus or disperse waves and radiation?

Microwave lenses, electron lenses, acoustic lenses Signup and view all the answers

What are lenses used for in correcting vision defects?

As visual aids in glasses to correct defects of vision such as myopia and hypermetropia Signup and view all the answers

Why is a lens different from a prism?

A lens can focus light to form an image, unlike a prism, which refracts light without focusing Signup and view all the answers