Question Detail
Question
In Young's double-slit experiment, what approximation is made for small angles to relate the fringe position (y) to the angular position (θ)?
Correct Answer
Option B is the correct answer.
Detailed Explanation
The text states, 'For small angles, sinθ = tanθ = y/x'. This shows that for small angles, the sine and tangent of the angle are approximately equal.
Hint
Look for the 'small angles' approximation on page 3.