In Order to Produce a Sustained Interference Pattern by Light

question 11

Multiple Choice

In order to produce a sustained interference pattern by light waves from multiple sources, which of the following conditions must be met?

• A) Sources are monochromatic.
• B) Sources are coherent.
• C) Both choices a and b are valid.
• D) None of these are valid.

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A country in East Asia, the world's most populous, known for its rich history, cultural heritage, and as a major global economic power.