because it feels like it
Such light is said to be polarized.
No. Light bulbs produce non-polarized light.
Circularly polarized light is obtained by adding two plane polarized lights of same intensity that are orthogonal but with a phase difference of 90 degrees.
polarized light
Light waves that vibrate in only one plane are called polarized.
Polarized light waves
scattering and by reflection
Totally polarized.
Presumably, you are referring to polarization. This has nothing to do with the color of light. Light of any color can be polarized, or non-polarized.
When light reflects off flat surfaces, such as pavement or water, it becomes polarized. This means that instead of scattering in all directions, it travels horizontally. Humans experience polarized light as glare. Polarized sunglasses block polarized light with vertical filters that prevent horizontal light from passing through. Only light traveling vertically can pass through the vertical filter.
For plane polarized light the electric vector of the light ray is allowed to vibrate in a single plane, producing a simple sine wave with a vibration direction lying in the plane of polarization - this is termed plane light or plane polarized light.
In polarized light, the plane of the electrical (and magnetic) oscillations is the same for all photons (particles of light). For example, if the light is traveling away from you, all photons might have electrical oscillations that go up and down.