NAME : *

1. Rainbow is formed due to *

2. The size of an object is perceived by an eye depends primarily on? *

3. The adjacent figure shows which eye defect ? And how it will correct ? *

4. When objects at different distances are seen by eye, which of the following remain constant? *

5. During refraction, will not change? *

6.The wave lengths corresponding to violet, yellow, red lights are *

7.The process of remission of absorbed light in all directions with different intensities by anatom or molecule is called? *

8. The muscle iris control the *

9. The number of surfaces bounding a prism is *

10. When the focal length of lens is 50Cm, then power of lenses is *