Skip this para If you want to you dive into the problem. Some of you guys might be pushed (as I am going to mention you in comment after writing this) or you might be visiting this discussion on your own. In both circumstances my colossal thanks to you guys Because I was wondering about the solution of this problem and was getting different explanations from every part of internet most of them were wrong so now I might get the answer.
PROBLEM IS HERE :- Problem is as follows two plane mirrors are placed at an angle of 50 degrees to each other and an object(point sized) is placed symmetrically between them You has to find the no. of images formed.
Below are two images one is an example for an angle between mirrors 90 degrees other is for 50 degrees as asked in question.
Edited : I find out some of you have problem in understanding the images so a short explanation here ==>
You can see mirrors in third and fourth quadrant and object is at -ve y axes at a distance of -5 from origin them first to images are formed by two mirrors Ɪ1 and Ɪ2 then what happens is image Ɪ2 works as a virtual object for left side mirror and Ɪ1 works as a virtual object for right side mirror and then It happens again and again. This stops when any images go beyond the mirror(extended) because then Image cannot work as virtual object. Below are given virtual object/object and their images.
O ---> Ɪ1 , Ɪ2
Ɪ1 ---> Ɪ3 , Ɪ2 ---> Ɪ4
Ɪ3 ---> Ɪ5 , Ɪ4 ---> Ɪ6
Ɪ5 ---> Ɪ7 , Ɪ6 ---> Ɪ8
Laws used in Graph-
Distance of image is equal to Distance of object from mirror/origin.
Thank you very much for visiting