Mirror Problem: Find the Centre of Circle and Observer Location for Two Mirrors

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The discussion revolves around a geometry problem involving two mirrors placed together and a point source in front of them, requiring the identification of the center of the circle formed by the point source and its two images. Participants seek clarification on the type of mirrors and their arrangement, emphasizing the need for a more detailed description to facilitate understanding. The main confusion lies in determining the observer's optimal position to view both images. The conversation highlights the importance of visual aids, such as diagrams, to effectively illustrate the problem. Overall, the thread aims to collaboratively solve the geometric challenge presented.
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1. The problem statemen
two mirrors are place together ,show that a point source in front of these mirrors and its two images lie on a circle.

_--find the centre of circle

--- in a diagram show where an observer should stand so as to be able to see both images.


I am not getting any clue to solve this,please some body help me







The Attempt at a Solution

 
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What kind of mirrors?
How are they placed?
A better description of the situation would help.
Also, at what point in solving the problem are you confused on?
 
Thread 'Variable mass system : water sprayed into a moving container'

Thread 'Variable mass system : water sprayed into a moving container'

Starting with the mass considerations #m(t)# is mass of water #M_{c}# mass of container and #M(t)# mass of total system $$M(t) = M_{C} + m(t)$$ $$\Rightarrow \frac{dM(t)}{dt} = \frac{dm(t)}{dt}$$ $$P_i = Mv + u \, dm$$ $$P_f = (M + dm)(v + dv)$$ $$\Delta P = M \, dv + (v - u) \, dm$$ $$F = \frac{dP}{dt} = M \frac{dv}{dt} + (v - u) \frac{dm}{dt}$$ $$F = u \frac{dm}{dt} = \rho A u^2$$ from conservation of momentum , the cannon recoils with the same force which it applies. $$\quad \frac{dm}{dt}...
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