Multiple choice

In Young's double slit experiment, the brightest lines observed were caused by:

  1. Interference of waves in phase

  2. Interference of waves out of phase

  3. The light reaching this area first

  4. This area containing specific elements
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A Correct answer
Explanation

In Young's double slit experiment, bright fringes occur where light waves from the two slits arrive in phase, leading to constructive interference. Dark fringes occur where waves arrive out of phase, leading to destructive interference.

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