The production of light is chemical change. I is done by someone.
Giving off light is considered a chemical change, not a physical change. This is because the emission of light usually involves chemical reactions at the atomic or molecular level that result in the production and release of photons.
Light can be refracted when it passes from one medium to another with a different density, causing its speed to change. The change in speed leads to a change in the light's direction, causing it to bend. This bending is what we observe as refraction.
To change the direction of a light beam, you can use mirrors or lenses to reflect or refract the light in the desired direction. Adjusting the angle of the mirror or lens will change the direction of the light beam. Alternatively, you can physically move the light source or the object the light is reflecting off of to change the direction of the beam.
The production of light by a fluorescent light is exothermic because it involves the conversion of electrical energy into light energy with the release of heat as a byproduct. This process occurs when electric current passes through the gas inside the fluorescent tube, causing the gas molecules to become excited and emit photons of light.
Light bends when traveling from one medium to another due to the change in its speed caused by the change in the medium's density. This change in speed leads to a change in the light's direction, a phenomenon known as refraction.
physical
Its a chemical change hottie
The observable change for burning a log is the production of heat, light, and smoke.
Yes
Because it a change of state of matter in this case of the the matter in question is gas.
Only one! But the light bulb really has to want to change!Just one if they prescribe the correct medication for "Light Production Deficit Disorder."
A change in state does not necessarily indicate a chemical change. Melting, freezing, boiling, or condensing of a substance are physical changes that do not involve a change in the chemical composition of the substance.
True. Light, heat, and gas production are indications of a chemical change. These signs suggest that a chemical reaction is taking place, which involves the formation of new substances with different properties than the original substances.
hi
Giving off light is considered a chemical change, not a physical change. This is because the emission of light usually involves chemical reactions at the atomic or molecular level that result in the production and release of photons.
This would be defined as a physical change. In chemistry, this would be defined as anything from a change in mass or volume to a change in state (solid, liquid, gas). As long as the substance does not change in molecular structure, it is mostly a physical change. Common indicators of a chemical change is change in color, production of light, production of extensive heat, production of uncommon smells, or even bubbling.
changes color, fizzing, foaming, or the production of heat, light, sound or odor.