What is the minimum thickness of a soap bubble for which the first order of constructive interference occurs for light of wavelength 550 nm?
Practice Questions
1 question
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
For constructive interference, the minimum thickness t = λ/2 = 550 nm / 2 = 275 nm.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the minimum thickness of a soap bubble for which the first order of constructive interference occurs for light of wavelength 550 nm?
Solution: For constructive interference, the minimum thickness t = λ/2 = 550 nm / 2 = 275 nm.
Steps: 7
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.
