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Multiple Reflections

  • Take two plane mirrors.
  • Hold them at some angle to one another in such a way the reflecting surfaces are facing each other.
  • Place an object between them.
  • What do you observe? 
  • Multiple images are formed.
  • Now change the angle between them and count the number of images formed every time.
  • Depending upon the angle between the two mirrors, the number images formed will differ.


 


 


Multiple Images formed due to Multiple Reflection


The number of images, when two plane mirrors are inclined at an angle q is


If q = 900 then

 

Test your Knowledge

1. Two mirrors are inclined at an angle of 72to one another. If an object is placed between them how many images can be seen?

2. Two mirrors are inclined at an angle of 600 to one another. If an object is placed between them how many images can be seen?

3. Two mirrors are inclined at an angle of 00 to one another. If an object is placed between them how many images can be seen?

 




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