In Young's double slit arrangement, slits are separated by a gap of 0.5 mm, and the screen is placed at a distance of 0.5 m from them. The distance between the first and the third bright fringe formed when the slits are illuminated by a monochromatic light of 5890 Å is:
In Young's double slit arrangement, slits are separated by a gap of 0.5 mm, and the screen is placed at a distance of 0.5 m from them. The distance between the first and the third bright fringe formed when the slits are illuminated by a monochromatic light of 5890 Å is:
Option 1 -
1178 * 10⁻⁹ m
Option 2 -
1178 * 10⁻¹² m
Option 3 -
1178 * 10⁻⁶ m
Option 4 -
5890 * 10⁻⁷ m
Asked by Shiksha User
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1 Answer
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Correct Option - 3
Detailed Solution:Fringe width, β = (λD) / d = (5890 × 10? ¹? × 0.5) / (0.5 × 10? ³) = 589 × 10? m
Distance between first and third bright fringe = 2β = 1178 × 10? m.
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