If the wavelength of light in a vacuum is 600 nm, what is its wavelength in glas
Practice Questions
Q1
If the wavelength of light in a vacuum is 600 nm, what is its wavelength in glass (n = 1.5)?
400 nm
600 nm
900 nm
300 nm
Questions & Step-by-Step Solutions
If the wavelength of light in a vacuum is 600 nm, what is its wavelength in glass (n = 1.5)?
Step 1: Understand that the wavelength of light in a vacuum is given as 600 nm.
Step 2: Know that when light enters a medium like glass, its wavelength changes.
Step 3: The formula to find the new wavelength in a medium is λ' = λ/n, where λ is the wavelength in a vacuum and n is the refractive index of the medium.
Step 4: Identify the refractive index of glass, which is given as n = 1.5.
Step 5: Substitute the values into the formula: λ' = 600 nm / 1.5.
Step 6: Perform the division: 600 nm divided by 1.5 equals 400 nm.
Step 7: Conclude that the wavelength of light in glass is 400 nm.
Wavelength in Different Media – The relationship between the wavelength of light in a vacuum and in a medium, which is affected by the refractive index of the medium.
Refractive Index – Understanding how the refractive index (n) of a material affects the speed and wavelength of light passing through it.
