JEE PHYSICS MCQ: WAVE OPTICS

1 Hard

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Application +4 | -1

Two coherent light sources having intensity in the ratio

2\, \times

produce an interference pattern. The ratio

\frac{{\begin{array}{cccccccccccccccccccc} {{l_{\max }} - }&{{l_{\min }}} \end{array}}}{{\begin{array}{cccccccccccccccccccc} {{l_{\max }} + }&{{l_{\min }}} \end{array}}}

will be

View answer and explanation

Correct option: D

\frac{{2\sqrt {2x} }}{{2x + 1}}

Option D (

\frac{{2\sqrt {2x} }}{{2x + 1}}

) is correct because it is the result of applying the formula for the ratio of the difference and sum of maximum and minimum intensities in an interference pattern.

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