DAY 14 – DAW January

nodal planes, system of two thin lenses, chromatic and spherical aberrations.


Q 1. A thin converging lens and a thin diverging lens are placed coaxially at a distance of 5 cm. If the focal Length of each lens is 10 cm, find for the combination (i) the focal length (ii) the power (iii) the position of the principal point. [20 marks]

Q 2.Find the position of the paraxial point of a lens in the form of sphere of glass of radius 5 cm and refractive index 1.5 [10 marks]

Video Solution at 11 pm