The focal length for violet, green and red light rays are `f_V,f_G` and `f_R` respectively. Which fo the following is the true relationship?

If the focal length of a lens for red and violet light rays respectively are f_R and f_V then which of the following is true relationship ?

The focal lengths of a lens for red,violet and green rays are F_r, F_v and F_g respectively. Then,

Focal length of convex lens for red, green and blue colour are f_r , f_g , and f_b respectively, so which of the following statements is true ?

The focal length of a converting lens are f_(v) and f_(r) for violet and red lights, respectively. Which of the following is correct?

The focal length of a converting lens are f_(v) and f_(r) for violet and red lights, respectively. Which of the following is correct?

V_(v), V_(R), V_(G) are the velocities of violet, red and green light , respectively, in a glass prism. Which among the following is a correct relation?

If red light and violet light rays are of focal length f_r adn f_v then which one of the following is true?

The focal length of a coverging lens is measured for violet,green and red colours.It is f_v,f_g and f_r respectively.We will get

The focal length ofa converging lens are f_v and f_r for violet and red light respectively.