JEE Mains · Physics · STD 12 - Wave optics
- JEE Mains 2021
- Hard
- MCQ
Consider the diffraction pattern obtained from the sunlight incident on a pinhole of diameter \(0.1\, \mu m\). If the diameter of the pinhole is slightly increased, it will affect the diffraction pattern such that :
Pick an option to check your answer.
Answer & Solution
Correct Answer
(D) its size decreases, but intensity increases
Step-by-step Solution
Detailed explanation
\(\sin \theta=\frac{ m \lambda}{ a }\)
when \(a\) increases, \(\theta\) decreases,
width decreases
width decreases so intensity will increases
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