The three thin lenses are marked as I, II and III. Paraxial ray incident on the lenses. Which of the above will cause light rays to diverge?
(i) Do not provide a continuous set of values,
(ii) Represent values as discrete steps,
(iii) Can utilize binary system, and
(iv) Can utilize decimal as well as binary systems.
Which of the above statements are true?
(a) (i) and (ii) only
(b) (ii) and (iii) only
(c) (i), (ii) and (iii) but not (iv)
(d) All of (i), (ii), (iii) and (iv).
Fill in the following blanks with suitable words : (a) A convex lens ___ rays of light, whereas a concave lens___ rays of light. (b) Lenses refract light to form images : a ___lens can form both real and virtual images, but a diverging lens forms only___ images.