Q113 / 150 · MHT CET 2024 (15 May Shift 1) · Physics
In double slit experiment, instead of taking slits of equal widths, one slit is made twice as wide as the other. Then in interference pattern
- Athe intensity of the maxima decreases and the minima has zero intensity.
- Bthe intensity of maxima decreases and that of the minima increases.
- Cthe intensity of the maxima increases and the minima has zero intensity.
- Correct answerDthe intensities of both the maxima and the minima increase.
Solution
$I_{\min } \propto(a-a)^2$
Later, $I_{\min } \propto(2 a-a)^2$
Clearly, the intensity of minima increases, Again, $I_{\max } \propto(a+a)^2$ Later, $I_{\max } \propto(2 a+a)^2$ Clearly, the intensity of maxima increases.
Later, $I_{\min } \propto(2 a-a)^2$
Clearly, the intensity of minima increases, Again, $I_{\max } \propto(a+a)^2$ Later, $I_{\max } \propto(2 a+a)^2$ Clearly, the intensity of maxima increases.
Hence, the correct answer is option: 'D'.