Refractive Index - Part 4 - The Disappearing Penny Trick

The video demonstrates an experiment to highlight the refractive index using a penny, a glass, and water. It explains how light bending makes the penny appear to disappear and reappear, referencing a previous video for further explanation. The experiment is safe and requires no protective gear. Observations show the penny's apparent movement due to light refraction.

What materials do you need for the refractive index experiment?

• A penny

• A tall transparent glass

• Water

• All of the above

Describe what happens to the penny when you fill the glass with water.

In the context of the experiment, what does it mean for the penny to appear to disappear?

What is the effect observed when viewing the penny from a distance?

Explain the relationship between the bending of light and the refractive index as demonstrated in the experiment.