How Light Travels - Periscope Template

Understanding how light travels is a fundamental concept in physics, and one engaging way to explore this is through the construction and use of a periscope. A periscope is an optical device that allows the user to see over, around or through an object, obstacle or condition that prevents direct line-of-sight observation. The periscope template serves as a guide for creating this instrument, typically consisting of a long, tubular structure with mirrors positioned at 45-degree angles at both the top and bottom. This design enables light to reflect from one mirror to the other, allowing the user to view images from a different angle than their current position.

The principles behind a periscope are based on the laws of reflection, demonstrating how light rays travel in straight lines and bounce off surfaces. When creating a periscope using the template, students can gain hands-on experience with these principles by assembling the device and then observing how the light reflects between the mirrors to deliver a view beyond an obstruction. This simple yet effective tool not only illustrates the rectilinear propagation of light but also provides a practical application of geometric optics, making it an excellent educational project for learners to understand the basics of how light travels.