how light produce or propagates
Light is produced when an atom emits photons due to changes in its energy levels. These photons travel in straight lines as electromagnetic waves and can propagate through mediums like air, water, or glass. The speed at which light travels is constant in a vacuum, but it can change when entering different mediums.
Only the disturbance produced in the medium in the form of simple harmonic vibration gets propagated in the form of waves. Hence a material medium is a must to do so. But in case of light it is the electro magnetic energy being propagated and so no material medium is required as an essential one.
In cultivated varieties they are propogated by budding or cuttings. Species and new varieties are produced from seed.
How is light propagated as a wave through empty space?
Light is also a kind of energy. It is transformed not as mechanical wave. Because mechanical wave definitely needs a material medium to get propagated. Sound energy is transmitted only as a mechanical wave. Without air medium sound cannot be propagated. But light does not need such material medium. It can pass even through free space in the form of electromagnetic wave. The general concept is: When any disturbance is made any where at any time in the space that would be propagated to other places. This is what we call transmission of light disturbance.
Vocal sounds are mechanical in nature. They are produced by the vibration of vocal cords in the larynx and then propagated through the air as sound waves. Electromagnetic waves, on the other hand, are a different type of wave that includes light and radio waves.
In light dependent reactions ATP and NADPH are produced
laser light is produced by solar reacting pannels that are transfered into capsules that contain magna light that turn into a small red flash of light.
Yes. Cistus can be propagated by seeds or cuttings and is easy to propagate.
radio waves are propagated through the interaction of
Light from a meteorite is caused by friction with the atmosphere
Bryophyllum plants can be easily propagated through leaf cuttings. Simply remove a healthy leaf from the plant, let it callous over for a day or two, then place it on top of soil in a bright, indirect light area. Keep the soil slightly moist, and roots should begin to grow from the leaf within a few weeks.