JEE Mains · Physics · STD 12 - 10. Wave optics
Which of the following are true for a single slit diffraction?
(A) Width of central maxima increases with increase in wavelength keeping slit width constant.
(B) Width of central maxima increases with decrease in wavelength keeping slit width constant.
(C) Width of central maxima increases with decrease in slit width at constant wavelength.
(D) Width of central maxima increases with increase in slit width at constant wavelength.
(E) Brightness of central maxima increases for decrease in wavelength at constant slit width.
- A A, D, E only
- B A, D only
- C B, D only
- D B, C only
Answer & Solution
Correct Answer
(A) A, D, E only
Step-by-step Solution
Detailed explanation
\( \beta_{cm}=\frac{2\lambda D}{a} \) (A) Correct \( \beta\propto\lambda \) (B) Incorrect (C) Correct \( \beta\propto\frac{1}{d} \) (D) Incorrect (E) Correct Statement A, C & E are correct. No option matching.
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