In the young's double slit experiment the fringe width of the interference pattern is found to be 3.2 \times 10^{-4} {\m}, when the light of wave length 6400^{\circ} {\A} is used. What will be change in fringe width if the light is replaced with a light of wave length 4800^{\circ} {\A}

Correct Answer is : 0.8×10−4m

COMEDK 2023 Shift 1 Paper

Question : 146 of 180

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In the young's double slit experiment the fringe width of the interference pattern is found to be 3.2×10−4m, when the light of wave length 6400∘A is used. What will be change in fringe width if the light is replaced with a light of wave length 4800∘A

2.4×10−4m
1.6×10−4m
0.8×10−4m
5.6×10−4m

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