Two sources of light of wavelength 2500 Å and 3500 Å are used in Young’s double slit…
Physics · Class 12 · CBSE — Wave Optics
Two sources of light of wavelength 2500 Å and 3500 Å are used in Young’s double slit experiment simultaneously. Which orders of fringes of two wavelength patterns coincide?
- 3rd order of 1st source and 5th of the 2nd
- 7th order of 1st and 5th order of 2nd
- 5th order of 1st and 3rd order of 2nd
- 5th order of 1st and 7th order of 2nd
Answer
(B) 7 th order of 1 st and 5 th order of 2 nd
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