Activity 16.6 Class 8 Science Chapter 16 Solution

we will go through activity 16.6 class 8 science chapter 16 Light. In this activity 16.6, we will discuss making a kaleidoscope. You should also go through activity 16.4 to get more about reflection.

 Activity

 

  ·     To make a kaleidoscope, get three rectangular mirror strips each about 15 cm long and 4 cm wide.

  ·     Join them together to form a prism as shown in figure.

  ·     Fix this arrangement of mirrors in a circular cardboard tube or tube of thick chart paper.

   ·     Make sure that the tube is slightly longer than the mirror strips.

   ·     Close one end of the tube with a cardboard disc having a hole in the center, through which you can see.

   ·     To make the disc durable, paste a piece of the transparent plastic sheet under the cardboard disc.

   ·     At the other end, touching the mirrors, fix a circular plane glass plate.

   ·     Place on this glass plate several small pieces of coloured glass (broken pieces of coloured bangles).

   ·     Close this end of the tube with a ground glass plate.

   ·     Allow enough space for the colour pieces to move around.

     

 Activity 16.6 Class 8 Science Chapter 16 Solution

Observation and explanation

Through the given procedure, we can make a kaleidoscope. It works on white light. When we peep through the hole, we find a variety of patterns.

We see different patterns each time we peep into it.