No. Light bulbs produce non-polarized light.
No. All light from light bulbs (incandescent) are equally bright. Higher wattage bulbs simply produce a higher quantity of light measured in lumens.
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.
That's the simplest kind of polarization, and it simply means that all pieces of light - all photons - have the same orientation in space. For example, if the light shines horizontally, the light can be vertically polarized, or it may be horizontally polarized. Or at some other angle in between.
direction of oscillation of electric field relative to direction of motion:verticalhorizontalcircular clockwisecircular counterclockwiseany combination of above
unpolarized light = light waves vibrate in more than one plane Polarized light = vibrations of light waves occur in a single plane.
No. All light from light bulbs (incandescent) are equally bright. Higher wattage bulbs simply produce a higher quantity of light measured in lumens.
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.
That's the simplest kind of polarization, and it simply means that all pieces of light - all photons - have the same orientation in space. For example, if the light shines horizontally, the light can be vertically polarized, or it may be horizontally polarized. Or at some other angle in between.
It's polarized light
Yes
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.
Light that is polarized to be horizontal passes through horizontal polarizers. This separates it from the other directions of light, since normal white is not polarized and is in all directions.
Because, if it wasn't for heat, there would be no light at all. The sun is blazing hot and gives off light. Our light bulbs require heat to produce light. Many other things.
"polarized"
direction of oscillation of electric field relative to direction of motion:verticalhorizontalcircular clockwisecircular counterclockwiseany combination of above
You need to look at the bulbs' light-output equivalents rather than voltages. Neither voltage nor wattage is a measure of light output; nearly all household bulbs in North America operate on 120 volts regardless of how much light they produce, and different types of bulbs produce different amounts of light despite having the same wattage rating. Both incandescent and CFL bulbs should be marked with their light output, usually in lumens. Try to pick a CFL whose light output is as close as possible to the incandescent bulb you're replacing.
polarized light