In a double-slit interference experiment, light with frequency $6.0 \times 10^{14}\ \text{Hz}$ falls on a pair of slits. On a screen placed some distance away, bright fringes spaced $3.0\ \text{mm}$ apart are seen. If the light frequency is altered to $5.0 \times 10^{14}\ \text{Hz}$, what is the new separation of the bright fringes?
- A$1.8\ \text{mm}$
- B$2.5\ \text{mm}$
- C$3.0\ \text{mm}$
- D$3.6\ \text{mm}$