A diffraction grating experiment is arranged with orange light of wavelength $600\ \text{nm}$. The grating has a slit separation of $2.00\ \mu\text{m}$. What is the angular separation $(\theta_2 - \theta_1)$ between the first-order and second-order maxima for the orange light?
- A$17.5^{\circ}$
- B$19.4^{\circ}$
- C$36.9^{\circ}$
- D$54.3^{\circ}$