Question

An interference is observed due to two coherent sources 'A' and 'B' having phase constant zero separated by a distance $4\lambda$ along the y-axis where $\lambda$ is the wavelength of the source. A detector D is moved on the positive x-axis. The number of points on the x-axis excluding the points x=0 and x=$\infty$ at which maximum will be observed is

• A. three
• B. four
• C. two
• D. infinite

Answer 1

The correct option is A

three

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