In Young's Double Slit Experiment, if the distance between slits and screen is doubled, then fringe spacing becomes:
Correct answer: B. Double the original value
- A. Zero
- B. Double the original value
- C. One
- D. Half of the original value
Explanation
Explanation:The Fringe spacing would be doubled. This is because the fringe spacing is proportional to the distance between the slits and the screen, so if this distance is doubled, the fringe spacing would also be doubled.The fringe spacing would not become zero or one respectively. If the distance between slits and screen is doubled, then fringe spacing becomes double of the original value, not half of the original value.
This question appeared on the UHS MDCAT 2009 paper, which you can sit online with every answer explained.
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Superposition states that overlapping waves produce a resultant displacement equal to the algebraic sum of their individual displacements. Interference covers constructive and destructive interference, phase difference, path difference, coherent sources, and conditions for maxima and minima. It differs from diffraction, which involves spreading around openings or obstacles.
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