All questions
AP Physics 2
14.8 Double-Slit Interference and Diffraction Gratings
13.3 Refraction
Multi-Unit
IntermediateMCQProportional AnalysisConceptual15.3k
Double-slit apparatus submerged in a liquid with index of refraction n.
Double-slit apparatus submerged in a liquid with index of refraction n.
In an experiment conducted in air, a monochromatic laser beam with wavelength \(\lambda_0\) is incident on a barrier with two narrow slits separated by a distance \(d\), producing an interference pattern on a screen located a distance \(L\) away. The distance between adjacent bright fringes on the screen is measured to be \(\Delta y_0\). The entire apparatus is then submerged in a transparent liquid with an index of refraction \(n\) (where \(n > 1\)) while the frequency of the light emitted by the laser remains unchanged. Which of the following correctly identifies the new wavelength of light in the liquid, \(\lambda_{\text{liquid}}\), and the new distance between adjacent bright fringes on the screen, \(\Delta y_{\text{liquid}}\)?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Tools for a 5