Duduli

Answer:- The defects due to wide-angle incidence and marginal incidence of monochromatic light, are called monochromatic aberrations.It is again divided into five types★Spherical aberration          ★Coma          ★Astigmatism          ★Curvature of field          ★Distortion

Answer:- The departures of real images from the ideal images, in respect of the actual size, shape,and position, are called aberrations.