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I. Coherence II. Same frequency III. Same wavelength IV. Same Intensity Which of the conditions...

Physics
JAMB 2000

I. Coherence
II. Same frequency
III. Same wavelength
IV. Same Intensity

Which of the conditions above are necessary to produce interference fringes?

  • A. I and III
  • B. I, II and IV
  • C. I, II and III
  • D. II and III
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Correct Answer: Option C
Explanation

The necessary conditions to produce interference fringes are I (Coherence), II (Same Frequency), and III (Same Wavelength). Condition IV (Same Intensity) is not necessary.

There is an explanation video available below.

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Explanation Video

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