(a) The statement made by the student is incorrect. Positions marked 3 (yellow) and 5 (blue) are similar to the color of gold medal and the color of the sky respectively. The student is stating the nature of colors in reverse order.
(b) (i)The position marked 7 corresponds closely to the colour of a brinjal.
(ii) The position marked 1 (red) corresponds closely to the colour of 'danger' or stop signal lights.