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What is the effect called when sound waves spread out after passing through a na

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Question: What is the effect called when sound waves spread out after passing through a narrow opening? (2019)

Options:

  1. Reflection
  2. Refraction
  3. Diffraction
  4. Interference

Correct Answer: Diffraction

Exam Year: 2019

Solution: 

The spreading out of sound waves after passing through a narrow opening is known as diffraction.

What is the effect called when sound waves spread out after passing through a na

Practice Questions

Q1
What is the effect called when sound waves spread out after passing through a narrow opening? (2019)
  1. Reflection
  2. Refraction
  3. Diffraction
  4. Interference

Questions & Step-by-Step Solutions

What is the effect called when sound waves spread out after passing through a narrow opening? (2019)
  • Step 1: Understand that sound travels in waves.
  • Step 2: Learn that when sound waves encounter a narrow opening, they can change direction.
  • Step 3: Recognize that this change in direction causes the sound waves to spread out.
  • Step 4: Know that this phenomenon of spreading out is called diffraction.
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