which question's we have to do from ths chapter human eye and the colourful world
Answers
Answer:https://www.learncbse.in/human-eye-colourful-world-chapter-wise-important-questions-class-10-science/
Explanation:Class 10 Science Human Eye and the Colourful World 2 Marks Questions
Q1. Why there is no dispersion of light refracted through a rectangular glass slab?
Answer – After refraction at two parallel faces of a glass slab, a ray of light emerges in a direction parallel to the direction of incidence of white light. As rays of all colours emerge in same direction, i.e., the direction of the incidence of white light, there is no dispersion. However, there is a lateral displacement.
Q2. Is the position of a star as seen by us in its true position? Justify your answer.
Answer – No, light from stars undergoes atmospheric refraction which occurs in medium of gradually changing refractive index. So, we see the apparent position of the star after refraction by atmosphere.