YDSE Vs Single Slit Diffraction

Q. In a double slit experiment, green light of $5303\stackrel{\circ }{A}$ 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 :

1. $9$
2. $10$
3. $6$
4. $5$

Q. In a double slit experiment, green light of $5303\stackrel{\circ }{A}$ 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 :

1. $9$
2. $10$
3. $6$
4. $5$