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Two slits separated by a distance of 1 mm are illuminated with red light of wavelength `6.5×10^(–7)` metre. The interference fringes are observed on a screen placed one metre from the slits. The distance between the thrid dark fringe and fifth fringe on the same side of centre is equal to
A. |
0.65 mm |
B. |
1.63 cmm |
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C. |
3.25 mm |
D. |
4.8 mm |