In a double slit experiment, when light of wavelength 400 nm was used, the angular width of the first minima formed on a screen placed 1 m away, was found to be $$0.2^\circ$$. What will be the angular width of the first minima, if the entire experimental apparatus is immersed in water ? $$(\mu_{water} = 4/3)$$

A

$$0.15^\circ$$

B

$$0.05^\circ$$

C

$$0.1^\circ$$

D

$$0.266^\circ$$