question_answer

Which of the following statements is/are correct?

(i) When two lenses are placed in contact, the focal length of the combination is equal to the sum of the focal length of the lenses.

(ii) The number of cones in the human eye is more than the number of rods.

(iii) When light rays are incident on the eye, maximum deviation takes place at the cornea.

(iv) When a ray of light passes from an optically denser medium to a rarer medium, it slows down.

A) Only (iii)

B) (i) and (ii)

C) (i), (ii) and (iv)

D) All (i), (ii), (iii) and (iv)

E) None of these