Why Can't Observer See Image 4 & 3 in 2 Plane Mirrors?

[kenny1999]

there is two plane mirror which is placed perpendicular to each other, as shown in the figure below. An object (indicated by the red dot) is placed
in front of the mirrors and then there are 5 image formed (indicated by the blue dot 1,2,3,4,5, as illustrated in the figure)

which image that the observer CANNOT see? I know the answer is image 4 and 3, but why? I want to know why the observer cannot see image 3,4
and why he can see image 1,2,5... Thanks all

 

[rl.bhat]

The position of the object is such that any light from the object cannot go through point 3 and 4, because they are in the plane of the reflection of mirror1 in mirrpr2 . Draw the ray diagram and verify your self.

 

[kerimek]

The reason the observer cannot see image 4 and 3 in the two plane mirrors is due to the principle of reflection. When light hits a surface, it reflects off at an angle that is equal to the angle at which it hits the surface. In the case of plane mirrors, the light from the object is reflected off at the same angle as it hits the mirror, creating an image that appears to be behind the mirror.

In the situation described, the object is placed in front of the mirrors, and the observer is standing in front of the mirrors as well. The observer can only see the images that are formed by the light that enters their eye. In this case, the observer can only see images 1, 2, and 5 because those are the only images that are formed by the light that enters their eye.

Image 3 and 4 are formed by light that is reflected off the first mirror and then reflected again off the second mirror. This creates a complex reflection pattern that does not enter the observer's eye, making these images invisible to the observer.

In summary, the observer cannot see images 3 and 4 because the light from those images does not enter their eye due to the principle of reflection. The observer can only see images 1, 2, and 5 because the light from those images directly enters their eye.