NEET Physics Young's Double Slit Experiment MCQ Question
The width of fringe is 2 mm on the screen in a double slit experiment for the light of wavelength of 400 nₘ. The width of the fringe for the light of wavelength 600 nₘ will be:
4 mm
33 mm
3 mm
2 mm
Correct Answer
Detailed Explanation
The fringe width is directly proportional to the wavelength of light. Therefore, increasing the wavelength from 400 nₘ to 600 nₘ increases the fringe width proportionally.
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