Q117 / 125 · BITSAT 2014 · Physics

The angular size of the central maxima due to a single slit diffraction is $\mathrm{a} \rightarrow$ slit width $)$

  • A
    $\frac{\lambda}{\mathrm{a}}$
  • Correct answer
    B
    $\frac{2 \lambda}{\text { a }}$
  • C
    $\frac{3 \lambda}{2 \mathrm{a}}$
  • D
    $\frac{\lambda}{2 \mathrm{a}}$

Solution

Angular size of central maxima is $$ 2 \times\left(\frac{\lambda}{a}\right)=\frac{2 \lambda}{a} $$

Hence, the correct answer is option: 'B'.

Relevant Questions