When I look at myself at my workplace's mirror and at my home I seem different so is your reflection in the mirror how you really look like and how do you know what you really look like?

Answer 1

In a plane mirror, a parallel beam of light changes its direction as a whole, while still remaining parallel; the images formed by a plane mirror are virtual images, of the same size as the original object (see mirror image). There are also concave mirrors, where a parallel beam of light becomes a convergent beam, whose rays intersect in the focus of the mirror. Lastly, there are convex mirrors, where a parallel beam becomes divergent, with the rays appearing to diverge from a common intersection "behind" the mirror. Spherical concave and convex mirrors do not focus parallel rays to a single point due to spherical aberration. However, the ideal of focusing to a point is a commonly -used approximation. Parabolic reflectors resolve this, allowing incoming parallel rays (for example, light from a distant star) to be focused to a small spot; almost an ideal point. Parabolic reflectors are not suitable for imaging nearby objects because the light rays are not parallel.
A beam of light reflects off a mirror at an angle of reflection that is equal to its angle of incidence (if the size of a mirror is much larger than the wavelength of light). That is, if the beam of light is shining on a mirror's surface at a 30° angle from vertical, then it reflects from the point of incidence at a 30° angle from vertical in the opposite direction.
This law mathematically follows from the interference of a plane wave on a flat boundary (of much larger size than the wavelength).


lt really depends on the make, model, and size of the mirror.

The second part of your question is more physiological. When you look at yourself in the mirror, you see your body's reflexion. If you decide the zit on your face is bad, you pop it. Now you look different. lt depends on how you want to see yourself if you are or are not really seeing your true self.