Worksheet 8

                      STARS AND SOLAR SYSTEM

Give one word for the following :

1.    Ray of light striking a reflecting surface.

2.   Angle between incient ray and normal.

3.   Angle between reflected and normal.

4.   Objects that shine in the light of other objects.

5.   Objects which emit their own light.

6.   Splitting of white light into its colours.

7.   The small opening in the iris.

8.   Luminous objects in the sky.

9.   The dark muscular structure behind the cornea.

10.            The cells sensitive to bright light and colour. 

11.            The cell sensitive to dim light.

12.            The spot on the retina having no vision.

13.            The type of the image that cannot be obtained on a screen.