CUET · PHYSICS · PYQ PAPER 2023
In a double slit experiment, instead of taking slits of equal widths, one slit is made twice as wide as the other. Then, in the interference pattern:
- A the intensity of both the maxima & the minima increase.
- B the intensity of the maxima increases & the minima have zero intensity
- C the intensity of the maxima decreases and that of the minima increases
- D the intensity of the maxima decreases and the minima have zero intensity
Answer & Solution
Correct Answer
(A) the intensity of both the maxima & the minima increase.
Step-by-step Solution
Detailed explanation
Since slit width is proportional to intensity ( \(W \propto I\) ), increasing one width increases the total light in the system. The maxima become brighter because more light is interfering, but the minima no longer have zero intensity because the unequal amplitudes from the two…
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