Question 405: Waves Optics

Question

If the screen is moved away from the plane of the slits in a Young's double slit experiment, then the :

Accepted Answer

In YDSE,
Separation between fringes is
Related to fringed width $$\beta  = {{D\lambda } \over d}$$
If D is increased $$\beta$$ increases while
Angular separation is independent of distance between slits and screen (D)
As angular separation $$ = {\beta  \over D} = {\lambda  \over d}$$

Answer

linear separation of the fringes decreases

Answer

angular separation of the fringes increases

Answer

angular separation of the fringes decreases

Answer

linear separation of the fringes increase

Waves Optics

If the screen is moved away from the plane of the slits in a Young's double slit experiment, then the :

Choose the correct answer: