Author Question: A microscope has an objective lens with an aperture diameter 0.60 cm. A monochromatic light source ... (Read 132 times)

mspears3 · **on:** Jul 28, 2018

A microscope has an objective lens with an aperture diameter 0.60 cm. 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 present lens were replaced by one with an aperture of diameter 1.0 cm, what would the minimum angle of resolution now become? (1 nm = 10-9 m)
a. 1.5 10-4 rad
c. 0.71 10-4 rad
b. 0.79 10-4 rad
d. 1.8 10-4 rad

Question 2

Light with a wavelength of 450 nm shines through a lens with an aperture diameter of 0.85 cm. Use Rayleigh's criterion to determine the limiting angle of resolution. (1 nm = 10-9 m)
a. 6.5 10-5 rad
c. 9.2 10-5 rad
b. 1.3 10-4 rad
d. 3.0 10-9 rad