0 votes
in Physics by (42.3k points)
closed by

A double-slit arrangement produces interference fringes for sodium light (λ = 589 nm) that are 0.20° apart. What is the angular fringe separation if the entire arrangement is immersed in water (n = 1.33)?

1 Answer

+1 vote
by (43.0k points)
selected by
Best answer

Data : θ1 = 0.20°, nw = 1.33

In the first approximation,

D sin θ1 = y1 and D sin θ2 = y2

This is the required angular fringe separation. 


In the first approximation,

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.