What is the minimum height for a mirror to see full image?

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To see a full image in a mirror, the minimum height of the mirror should be half the height of the person, which is 1 meter for a 2-meter tall individual. This is because a plane mirror reflects light at equal angles, allowing the viewer to see their full reflection without needing the mirror to be the same height as themselves. Drawing a ray diagram can clarify how light reflects and aids in understanding the concept better. Many participants in the discussion emphasize the importance of visual aids in solving this problem. A proper understanding of reflection principles is essential for determining the minimum mirror height.
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Homework Statement



I am 2 meters tall and I want to see my full image in a mirror. What is the minimum height the mirror should be?

Homework Equations


Why shouldn't min height be also 2m, because no magnification (plane mirror) ??


The Attempt at a Solution

 
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Here, drawing a ray diagram would really help, because I have seen a lot of confusion among guys about this question... so draw the RD and post it here, and believe me, it helps a lot.
 
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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