Bhautik Study

Q.White light is passed through a double slit and interference is observed on a screen 1.5 m away. The separation between the slits is 0.3 mm. The first violet and red fringes are formed 2.0 mm and 3.5 mm away from the central white fringes. The
difference in wavelengths of red and violet light is……… nm.                         (JEE-2021)