The two slits in Young's double slit experiment are illuminated by two different sodium lamps emitting light of the same wavelength. No interference pattern will be observed on the screen.
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To solve the problem of why no interference pattern will be observed on the screen in Young's double slit experiment when illuminated by two different sodium lamps emitting light of the same wavelength, we can follow these steps:
### Step-by-Step Solution
1. **Understanding the Setup**: In Young's double slit experiment, two slits (S1 and S2) are illuminated by light sources. In this case, the sources are two different sodium lamps.
2. **Identifying the Sources**: Each sodium lamp is a separate light source. Even though they emit light of the same wavelength, they are distinct sources.
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Knowledge Check
The slits in Young's double slit experiment are illuminated by light of wavelength 6000 Ã…. If the path difference at the central bright fright fringe is zero, what is the path difference for light from the slits at the fourth bright frings?
