A Microscope Has an Objective Lens with an Aperture of Diameter

Multiple Choice

A microscope has an objective lens with an aperture of diameter 0.60 cm where a monochromatic light source of wavelength 580 nm is used to illuminate the object.It is determined that the minimum angle of resolution is 1.18 × 10−⁴ rad.If the illuminating source were replaced by a source of wavelength 700 nm,what would the minimum angle of resolution now become? (1 nm = 10−⁹ m)

A) 0.58 × 10−⁴ rad
B) 1.4 × 10−⁴ rad
C) 0.85 × 10−⁴ rad
D) 1.2 × 10−⁴ rad