Question

The large space telescope that has been placed into an earth orbit has an aperture diameter of 2.40 meters. what angular resolution will this telescope achieve for visible light of wavelength λ = 4.80 × 10−7 m?

Answer 1

Angular resolution is given by:

Ф = 1.22(y/D) radians

Where y = wavelength, D = Aperture diameter

Substituting for the values given in the current scenario;

Ф = 1.22*(4.80*10^-7)/2.40 = 2.44*10^-7 Radians