## Related questions with answers

Question

Determine the minimum thickness of a soap film ( $n=$ 1.330) that will result in constructive interference of (b) the blue $\mathrm{H}_\gamma$ line $(\lambda=434.0 \mathrm{~nm})$

Solutions

VerifiedSolution A

Solution B

Answered 2 years ago

Step 1

1 of 4In this problem, a soap film has $n = 1.330$. We calculate the minimum thickness for constructive interference. For this part, the incident light has $\lambda = 434.0~\mathrm{nm}$.

Answered 2 years ago

Step 1

1 of 4The condition for structural disturbance is obtained from equation (29.9).The minimum film thickness for structural disturbances corresponds to $m= 0$ in this equation.

$\begin{align*} 2nt & = \left( m + \dfrac{1}{2} \right) \cdot \lambda\\ \end{align*}$

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