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NEET UG PHYSICS MCQ: WAVE OPTICS
1
Easy
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Analyzing
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Statement-1: In YDSE, if separation between slits is less than wavelength of light, then no interference pattern could be observed.
Statement-2: For interference pattern to be observed, light sources have to be coherent.
Statement-2: For interference pattern to be observed, light sources have to be coherent.
View answer and explanation
Correct option: B
Statement-1 is true, Statement-2 is true, Statement-2 is not the correct explanation for Statement-1
Option B is correct. Statement-1 is true because if the slit separation is less than the wavelength, no distinct interference pattern is formed. Statement-2 is also true because coherent sources are necessary for sustained interference, but the coherence is not the direct reason for the absence of a pattern when slit separation is less than the wavelength.
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