CUET · PHYSICS · PYQ PAPER 2025
Two slits are made 0.8 mm apart and the screen is placed 1.5 m away. What should be the width of each slit to obtain 8 maxima of the double slit pattern within the central maximum of the single slit pattern?
- A 0.2 mm
- B 0.4 mm
- C 0.6 mm
- D 0.8 mm
Answer & Solution
Correct Answer
(A) 0.2 mm
Step-by-step Solution
Detailed explanation
\( \frac{(8/2)\lambda}{d} = \frac{\lambda}{a} \) \( a = \frac{d}{4} \) \( a = \frac{0.8 \text{ mm}}{4} \) \( a = 0.2 \text{ mm} \)
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