Chapter 4: Problem 73

Describe the working of a "kaleidoscope" and a "periscope".

Short Answer

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Short Answer: A kaleidoscope is an optical device that creates symmetrical patterns using mirrors and colorful objects, with applications in decorative and artistic purposes, as well as therapy and meditation. A periscope is an optical device that allows users to see objects not directly in their line of sight using mirrors placed at 45-degree angles, with applications in military settings, theaters, and photography.

Step by step solution

Structure and Function of a Kaleidoscope

A kaleidoscope is an optical device that creates symmetrical patterns by reflecting light through a series of mirrors. The device typically consists of a tube with mirrors running along the inside length of the tube, and colorful objects such as beads, glass, or other small items placed at one end. When light enters the kaleidoscope, it bounces off the mirrors and reflects the colorful objects, creating intricate and ever-changing patterns.

Structure and Function of a Periscope

A periscope is another optical device that allows users to see objects that are not directly within their line of sight. The device has a long, adjustable vertical tube with two flat mirrors placed at a 45-degree angle at the top and bottom ends. Light from the object being viewed enters the periscope and reflects off the top mirror, then reflects off the bottom mirror, and finally reaches the viewer's eye. This enables the user to view objects that are vertically obscured, such as behind walls or underwater.

Applications of Kaleidoscopes

The kaleidoscope has various applications, including decorative and artistic purposes, and as a source of inspiration for designs in fashion, architecture, and other visual arts. It is also used as a therapeutic and meditation tool, with the ever-changing patterns of light and color helping to create a calm and meditative state for users.

Applications of Periscopes

Periscopes are commonly used in military settings, particularly in submarines, to allow crew members to view the surface of the water without needing to surface the vessel. Periscopes are also used in armored vehicles to provide improved visibility while remaining concealed. In civilian uses, periscopes can be found in some theaters to improve visibility for audience members seated towards the back, and in photography to capture images from unique angles or around obstacles.

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Describe the working of a "kaleidoscope" and a "periscope".

Short Answer

Step by step solution

Structure and Function of a Kaleidoscope

Structure and Function of a Periscope

Applications of Kaleidoscopes

Applications of Periscopes

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