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Why does sound travel slower through a medium when it is at low temperature?
Sound travels slower through a medium at low temperatures because the particles in the medium have lower energy and move more slowly, causing sound waves to propagate more slowly. This reduction in particle movement decreases the speed at which sound can travel through the medium.
Refraction causes light to do what?
Refraction is the bending of light when it passes from a dense medium to a differently dense medium. Light therefore finds it easier/more difficult to travel and the speed changes accordingly, which is why it bends.
What travels more slowly in glass red light or violet?
Red light travels more slowly in glass than violet light. This is because the speed of light in a medium is inversely proportional to its wavelength, and red light has a longer wavelength compared to violet light.
What happens when light enters a new medium in terms of speed?
When light enters a new medium, its speed can change. The speed of light changes depending on the optical density of the medium it is traveling through. In general, light travels more slowly in denser media such as glass or water compared to its speed in a vacuum.
Why does sound move more rapidly -or slowly- through one medium than another?
Generally, the density of the transfer medium and its temperature determines the rate of transfer of sound energy. The more dense the medium and the higher its temperature, the faster sound will travel through it.
A ray of light travelling from medium A to medium B bends away from the Norman Which medium is optically denser?
The ray of light bends away from the normal when traveling from a less optically dense medium (medium A) to a more optically dense medium (medium B). Therefore, medium B is optically denser in this scenario.
Does light change speeds if the source is moving?
The speed of light is constant in its reference plane. You could never observe light moving more slowly, except when it refracts through a transparent medium.
Why Refractive index the medium is always greater than 1?
The refractive index indicates how much light is slowed down as it travels through a medium compared to its speed in a vacuum. Since light travels more slowly in a medium than in a vacuum, the refractive index of the medium is always greater than 1.
What happens to the direction of a light wave when it passes from a less dense medium such as air into a more medium such as glass?
The light bends when it passes from one medium to another. But only if it approaches the interface at an angle. In such a case it will still travel slower, but there will be no apparent bending.
How can you change the medium that light travels through?
Anything that light will penetrate is a medium light will travel through. Any such medium will slow light down, to a certain degree. Window glass slows light down somewhat. Water slows light down a bit more. A diamond slows light down greatly (part of the reason for the "fire" in a diamond.)
What happens to the direction of light wave when it passes from less dense medium such as air into a more dense medium such as glass?
The light bends when it passes from one medium to another. But only if it approaches the interface at an angle. In such a case it will still travel slower, but there will be no apparent bending.
What do light waves travel best through?
Light waves travel fastest through vacuum, at nearly 30 million meters per second. Light travels more slowly through other substances such as air and water, and can be absorbed.
