Available Answers

1. 1.

   Fill in the blanks.

   1. Light travels in a _____________ path.
   2. A _____________ mirror is also called a diverging mirror.
   3. A _____________ lens is also called a diverging lens.
   4. A _____________ medium bounded by two curved surfaces is called a lens.
   5. A _____________ image can be formed on a screen.
   6. When white sunlight passes through the prism it is split into _____________ colours of light.
2. 2.

   What is light?

3. 3.

   What is reflection of light?

4. 4.

   Label the incident ray, the incident angle and the reflected ray correctly in Figure 15.19.

   

5. 5.

   What are the characteristics of images formed by

   1. a plane mirror?
   2. a convex mirror?
   3. a concave mirror?