Refraction is when they change direction slightly when entering the second medium, e.g. flashlight shining down towards water surface
Diffraction.
it is called refraction
When waves travel from one point to another energy is transferred through the medium. Waves are periodic vibrations or oscillations in a medium that propagate through the medium carrying energy in the form of the movement. Exceptions to this are light and gravity waves, which do not require a medium for propagation.
Light is a form of electromagnetic radiation that can travel through a vacuum, or a space with no air, meaning it does not require a medium to travel through. Other forms of electromagnetic radiation, like radio waves, microwaves, and x-rays, can also travel through a vacuum. Sound, on the other hand, is a form of mechanical wave which requires a medium to travel. This medium can be a solid, liquid, or gas, and is the way sound travels from one place to another. For example, when someone speaks, the sound waves travel through the air and reach our ears. In summary, light and other forms of electromagnetic radiation can travel with or without a medium, while sound requires a medium to travel.
Light actually travels in waves.This is known to be true because there are only 3 ways that energy can be transferred. As you probably already know, light does not need a medium to travel through because it travels through space. Electromagnetic waves are the only form of energy transfer that do not require a medium to travel through.
Radiant heat (electromagnetic waves) does not require a medium. Sunlight, infrared light, microwaves are all radiant heat in the form of electromagnetic radiation.
A form of transmission that allows multiple signals to travel simultaneously over one medium is known as multiplexing
The form of energy that needs a medium to travel is known as mechanical energy.For example sound needs a medium to travel,that's why sound can't travel in vacuum,light needs no medium to travel it is non mechanical form of energy.
When waves travel from one point to another energy is transferred through the medium. Waves are periodic vibrations or oscillations in a medium that propagate through the medium carrying energy in the form of the movement. Exceptions to this are light and gravity waves, which do not require a medium for propagation.
Light is a form of electromagnetic radiation that can travel through a vacuum, or a space with no air, meaning it does not require a medium to travel through. Other forms of electromagnetic radiation, like radio waves, microwaves, and x-rays, can also travel through a vacuum. Sound, on the other hand, is a form of mechanical wave which requires a medium to travel. This medium can be a solid, liquid, or gas, and is the way sound travels from one place to another. For example, when someone speaks, the sound waves travel through the air and reach our ears. In summary, light and other forms of electromagnetic radiation can travel with or without a medium, while sound requires a medium to travel.
Light actually travels in waves.This is known to be true because there are only 3 ways that energy can be transferred. As you probably already know, light does not need a medium to travel through because it travels through space. Electromagnetic waves are the only form of energy transfer that do not require a medium to travel through.
Radiant heat (electromagnetic waves) does not require a medium. Sunlight, infrared light, microwaves are all radiant heat in the form of electromagnetic radiation.
A form of transmission that allows multiple signals to travel simultaneously over one medium is known as multiplexing
since the sound requires a medium to travel through. so the air is one of the medium for sound to travel. Therefore sound can travel through air.
it is a light form i think
Any form of light. Radio waves, microwaves, gamma rays, x-rays, infrared waves, visible waves, ultraviolet waves, they all can travel without requiring a substance to travel through. How else would light from the Sun get to us through the emptiness that is outer space?
Light wave flows as a form of radiation. One of the basic characteristics of radiant energy is it don't need a medium. But If it flows through a medium, it won't raise the temperature of medium.
A wave, by definition, is an oscillation propagating through a medium. So in order for a wave to move it needs a medium (ie. air, water, earth, etc.) and energy. In the case of light (ie. photons), which is a form of wave that can travel through a vacuum, the medium is the electromagnetic field.
Electromagnetic Radiation requires no medium. Light is a form of electromagnetic radiation, and it can traverse the stars.