JEE Main 2019 — Wave Optics Question with Solution

In a Young’s double slit experiment with slit separation 0.1 mm, one observes a bright fringe at angle $$\frac{1}{40}$$ by using light of wavelength $$\lambda$$₁. When the light of wavelength $$\lambda$$₂ is used a bright fringe is seen at the same angle in the same set up. Given that $$\lambda$$₁ and $$\lambda$$₂ are in visible range (380 nm to 740 nm), their values are -