At a particular point on a screen illuminated by two slits, the path length from that point to the bottom slit is greater than to the top slit. Which of the following statements are true about the path-length difference between the two waves arriving at the screen?
(True/False Problem)
1. a bright line will appear if the difference in path lengths is three wavelengths.
2. a bright line will appear if the difference in path lengths is 3/2 wavelengths.
3. a dark line will appear if the difference in path lengths is half a wavelength.
4. a bright line will appear if the difference in path lengths is 1/4 of a wavelength.
5. a dark line will appear if the difference in path lengths is two wavelengths.
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