Exploring the World of Light Wavelengths
#1: What is the thinnest soap film that will strongly reflect red light from a helium-neon laser?
The wavelength of this light is 633 nm in air and 470 nm in soapy water.
#2: What is the wavelength of the light from a carbon dioxide laser when it is in glass with an index of refraction of 1.7?
The wavelength in a vacuum is 10600 nm.
1. The thinnest soap film that will strongly reflect red light from a helium-neon laser is 235 nm.
2. The wavelength of light from a carbon dioxide laser in glass with an index of refraction of 1.7 is approximately 6235.29 nm.
When we delve into the fascinating world of light, we encounter the concepts of wavelength and reflection. The thinnest soap film that strongly reflects red light from a helium-neon laser is a remarkable 235 nm. This specific thickness is crucial for achieving the desired reflection of the red light. The unique properties of soap films allow them to interact with light in intriguing ways, showcasing the wonders of physics in everyday phenomena.
On the other hand, the wavelength of light from a carbon dioxide laser in glass with an index of refraction of 1.7 presents us with a different scenario. By understanding the relationship between wavelength, index of refraction, and medium, we can calculate the wavelength in glass to be approximately 6235.29 nm. This calculation showcases the intricacies of light behavior in different mediums, providing a glimpse into the complexities of optical physics.