In a double-slit experiment, the two slits are $1 \mathrm{mm}$ apart and the screen is placed 1 m away. A monochromatic light of wavelength $500 \mathrm{nm}$ is used. What will be the width of each slit for obtaining ten maxima of double-slit within the central maxima of a single-slit pattern?

• Correct answer
  A

  $0.2 \mathrm{mm}$

   
• B

  $0.1 \mathrm{mm}$

   
• C

  $0.5 \mathrm{mm}$

   
• D

  $0.02 \mathrm{mm}$

   

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