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10. Wave optics — Physics STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 SciencePhysics10. Wave optics1 Mark
MCQ
Two sources give interference pattern which is observed on a screen, $D$ distance apart from the sources. The fringe width is $2w$. If the distance $D$ is now doubled, the fringe width will
  • A
    Become $w/2$
  • B
    Remain the same
  • C
    Become $w$
  • ✓
    Become $4w$
✓

Answer

Correct option: D.
Become $4w$
d
(d)$\beta \propto D$

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