What is the minimum thickness of a soap bubble for which the first order of cons
Practice Questions
Q1
What is the minimum thickness of a soap bubble for which the first order of constructive interference occurs for light of wavelength 550 nm?
275 nm
550 nm
1100 nm
825 nm
Questions & Step-by-Step Solutions
What is the minimum thickness of a soap bubble for which the first order of constructive interference occurs for light of wavelength 550 nm?
Step 1: Understand that a soap bubble creates interference patterns when light reflects off its surfaces.
Step 2: Know that constructive interference occurs when the light waves reinforce each other.
Step 3: For the first order of constructive interference, the condition is that the thickness of the bubble (t) should be equal to half the wavelength of the light (λ/2).
Step 4: The given wavelength of light is 550 nm.
Step 5: Calculate the minimum thickness by dividing the wavelength by 2: t = 550 nm / 2.
