A double-slit experiment is performed and then redone using slits of double the previous separation.Nothing else is changed.If the approximation sin $\theta$ $\approx$ $\theta$ holds,what happens to the angle between the maxima?
A) it stays the same
B) it doubles
C) it quadruples
D) it halves
E) it quarters

Question

A double-slit experiment is performed and then redone using slits of double the previous separation.Nothing else is changed.If the approximation sin $\theta$ $\approx$ $\theta$  holds,what happens to the angle between the maxima?
A) it stays the same
B) it doubles
C) it quadruples
D) it halves
E) it quarters

Quizplus · Accepted Answer

The angle between the maxima is inversely proportional to the slit separation. Doubling the slit separation halves the angle between the maxima.

A Double-Slit Experiment Is Performed and Then Redone Using Slits θ\thetaθ

A Double-Slit Experiment Is Performed and Then Redone Using Slits $\theta$