CUET · PHYSICS · PYQ PAPER 2025
In a Young's double slit experiment, the two parallel slits are 1 mm apart and a screen is placed 1 m away from the slits. When the light of wavelength 600 nm is used, the fringe width is
- A 0.4 mm
- B 0.5 mm
- C 0.6 mm
- D 0.7 mm
Answer & Solution
Correct Answer
(C) 0.6 mm
Step-by-step Solution
Detailed explanation
\( \beta = \frac{\lambda L}{d} \) \( \beta = \frac{(600 \times 10^{-9} \, \text{m})(1 \, \text{m})}{1 \times 10^{-3} \, \text{m}} \) \( \beta = 0.6 \times 10^{-3} \, \text{m} = 0.6 \, \text{mm} \)
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