ExamBro
ExamBro
AP EAMCET · PHYSICS · Wave Optics

In Young's double slit experiment, the \(10^{\text {th }}\) maximum of wavelength \(\lambda_1\) is at a distance of \(y_1\) from the central maximum. When the wavelength of the source is changed to \(\lambda_2, 5^{\text {th }}\) maximum is at a distance of \(y_2\) from its central maximum. The ratio \(\left(\frac{y_1}{y_2}\right)\) is

  1. A \(\frac{2 \lambda_1}{\lambda_2}\)
  2. B \(\frac{2 \lambda_2}{\lambda_1}\)
  3. C \(\frac{\lambda_1}{2 \lambda_2}\)
  4. D \(\frac{\lambda_2}{2 \lambda_1}\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(\frac{2 \lambda_2}{\lambda_1}\)

Step-by-step Solution

Detailed explanation

Position fringe from central maxima \(y_1=\frac{n \lambda_1 D}{d}\) Given, \(n=10\) \(\therefore \quad y_1=\frac{10 \lambda_1 D}{d}\) ...(i) For second source \(y_2=\frac{5 \lambda_2 D}{d}\) ...(ii)…