Class 12 NEET Physics Optics Questions Part 1

Two point sources are regarded as just resolved when the principal diffraction maximum of one image coincides with the first minimum of the other.
If one considers diffraction through a circular aperture, this translates into the expression
θ=1.22‌

λ

d

=1.22×‌

5000×10−8

10

=1.22×5×10−6=6×10−6rad
Hence, the closest option is 10−6 rad