JEE Mains · Physics · STD 12 - 10. Wave optics
In a double -slit experiment, green light \(\left( {5303\,\mathop A\limits^o } \right)\) falls on a double slit having a separation of \(19.44\,\mu m\) and a width of \(4.05\,\mu m\). The number of bright fringes between the first and the second diffraction minima is
- A \(10\)
- B \(05\)
- C \(04\)
- D \(09\)
Answer & Solution
Correct Answer
(B) \(05\)
Step-by-step Solution
Detailed explanation
For diffraction Location of \(1^{\text {st }}\) minima \({y_1} = \frac{{D\lambda }}{a} = 0.2469\,D\lambda \) Location of \(2^{\text {nd }}\) minima \({{\text{y}}_2} = \frac{{2{\text{D}}\lambda }}{{\text{a}}} = 0.4938\,{\text{D}}\lambda \) Now for interference Path for…
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