In the double slit experiment, coherent light of frequency $5 \times 10^{14}$ Hz is incident on two narrow parallel slits $S_1$ and $S_2$. The central bright band is formed at O on the screen. The next bright band is formed at P on the screen (as shown in the figure). The speed of light is $3 \times 10^8 ms^{-1}$, the distance $\left(S_2 P-S_1 P\right)$ is:

0.6 µm

The correct answer is Option (3) → 0.6 µm