Physics · Wave Optics
In a Young's double slit experiment (YDSE), monochromatic light falls on a screen 1.80 m from two slits separated by 2.08 mm. The first and second order bright fringes are separated by 0.553 mm. The wavelength of the light used is:
- 1520 nm
- 2639 nm✓
- 3715 nm
- 4810 nm
Correct answer
639 nm
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