Solution

Limit of resolution $\theta_R = \frac{1.22\lambda}{d}$, with $\lambda = 600 \times 10^{-9}$ m and d = 2 m $\theta_R = \frac{1.22 \times 600 \times 10^{-9}}{2} = 3.66 \times 10^{-7}$ rad

Concept limit of resolution of a telescope

Ray Optics and Optical Instruments in past papers

89 questions from this chapter have appeared across 25 exam years.