Question
Download Solution PDFIn a Young's double slit experiment two slits are separated by 2 mm and the screen is placed one meter away. When a light of wavelength 500 nm is used, the fringe separation will be:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCalculation:
The fringe separation in a Young's double slit experiment is given by the formula:
y = (λ × D) / d
Where:
- λ is the wavelength of light
- D is the distance between the slits and the screen
- d is the distance between the slits
Substitute the given values:
- λ = 500 nm = 500 × 10-9 m
- D = 1 m
- d = 2 mm = 2 × 10-3 m
The fringe separation (y) is:
y = (500 × 10-9 × 1) / (2 × 10-3) = 0.25 mm
The correct answer is: 0.25 mm
Last updated on Jun 6, 2025
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