Test-MCQ Class 10-NCERT -Science-Chapter 11-Test-1

1.The human eye forms the image of an object at its

2. The human eye can focus objects at different distances by adjusting the focal length of eye lens. This is due to

3. The change in focal length of eye lens is caused by action of

4. The least distance of distinct vision for a young adult with normal vision is about

5. At noon the Sun appears white as [Exemplar]

6. A person cannot see distinctly objects kept beyond 2 m. This defect can be corrected by using a lens of power [Exemplar]

7. Which of the following phenomena of light are involved in the formation of a rainbow? [Exemplar]

8. A prism ABC (with BC as base) is placed in different orientations. A narrow beam of white light is incident on the prism as shown in figure. In which of the following cases, after dispersion, the third colour from the top corresponds to the colour of the sky? [Exemplar]

9. A student sitting on the last bench can read the letters written on the blackboard but is not able to read the letters written in his text book. Which of the following statements is correct?

10. In the following diagram, the path of a ray of light passing through a glass prism is shown below.

In this diagram, the angle of incidence, the angle of emergence and the angle of deviation respectively, are