DIFFRACTION

DIFFRACTION

1. PATTERN OF DIFFRACTED WAVES :-

   • OBSERVATION >>
     • wide gap
       • (waves) are bend only at the edges after passing through the gap.
       • (effect of diffraction) is not obvious
     • narrow gap
       • (waves) are circular and appear to originated from the small gap.
       • (effect of diffraction) is obvious
     • narrow obstacle
       • Straight water wave propagate towards an obstacle.
   • PROCEDURE >>

2. SOUND

   • 1. The street cleaner can hear the sound of the radio even though it is behind an obstacle. 2. The sound of the radio spreads around the corner of the wall due to diffraction of sound wave.

3. LIGHT

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