What Is the Limiting Angle of Resolution for a Lens $1.8 \times 10 ^ { - 7 } \mathrm { rad }$

Multiple Choice

What is the limiting angle of resolution for a lens of radius 2.0 mm when viewing with light having a wavelength of 600 nm?

A) $1.8 \times 10 ^ { - 7 } \mathrm { rad }$
B) $1.5 \times 10 ^ { - 7 } \mathrm { rad }$
C) $1.3 \times 10 ^ { - 4 } \mathrm { rad }$
D) $1.5 \times 10 ^ { - 4 } \mathrm { rad }$
E) $1.8 \times 10 ^ { - 4 } \mathrm { rad }$