Of course not,it is not true. The speed of light decreases
. . . decreases.
The speed of light decreases when it travels from air into glass because the glass has a higher refractive index than air. This causes the light to slow down as it moves through the denser medium.
Correct.
The ratio between the speed of light in vacuum, c, and the speed at which light travels in a material, v, is called the refractive index of the material.The refractive index of air for visible light is 1.000293, so the speed of light in air is c / 1.000293 ≈ 299,705,000 m/s. The refractive index of glass, depending on the type of glass, for visible light is around 1.5, so the light in glass travels at c / 1.5 ≈ 200,000,000 m/s.
Its speed would decrease upon moving from a less dense to a more dense medium
. . . decreases.
The speed of light decreases when it travels from air into glass because the glass has a higher refractive index than air. This causes the light to slow down as it moves through the denser medium.
Correct.
The speed of light is minimum in Glass. It is because light travels at minimum speed in solids.
The light refracts due to the change in speed. The change in speed occurs because the light is travelling through a denser medium. So it will travel fastest through the air and slowest through the glass
The ratio between the speed of light in vacuum, c, and the speed at which light travels in a material, v, is called the refractive index of the material.The refractive index of air for visible light is 1.000293, so the speed of light in air is c / 1.000293 ≈ 299,705,000 m/s. The refractive index of glass, depending on the type of glass, for visible light is around 1.5, so the light in glass travels at c / 1.5 ≈ 200,000,000 m/s.
Light is refracted as it moves from air into glass because the speed of light changes as it travels from a less dense medium (air) to a more dense medium (glass). This change in speed causes the light rays to bend, resulting in refraction.
If the temperature of the medium increases, the speed of sound also increases. This is because sound travels faster in warmer air due to increased molecular motion and faster propagation of sound waves.
The wavelength of the light wave must increase as it passes from glass into air. This is because light travels faster in air than in glass, causing the wavelength to stretch out as the wave exits the denser medium.
When light travels from air to glass, it slows down due to the higher refractive index of glass compared to air. This change in speed causes the light to bend towards the normal (an imaginary line perpendicular to the surface) at the point of entry. This bending of light is known as refraction.
When light travels from air to glass, it slows down due to the increase in optical density, causing the light waves to bend towards the normal. This phenomenon is known as refraction. The speed of light in glass is slower than in air due to the higher refractive index of glass.
When light travels from air to glass it is called refraction. As it travels, the light ray slows down and bends towards the normal. The normal is a line drawn at right angles to the boundary of the medium.