The fringe width in a young’s double slit interference pattern is 2.4 × 10 –4 m, when red…
Physics · Class 12 · CBSE — Wave Optics
The fringe width in a young’s double slit interference pattern is 2.4 × 10–4 m, when red light of wavelength 6400 Å is used. How much will it change, if blue light of wavelength 400 Å is used ?
- 9 × 10–4 m
- 0.9 × 10–4 m
- 4.5 × 10–4 m
- 0.45 × 10–4 m
Answer
(B) 0.9 × 10 –4 m
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