frequency
When sound enters water from air, its speed increases and it travels faster due to water being a denser medium. The sound waves may also be amplified and travel over longer distances underwater compared to in air. Additionally, the pitch of the sound may seem slightly higher in water due to the change in speed.
Sound travels faster in water compared to air because water is denser and provides a more conducive medium for sound waves to propagate. When sound enters water from air, it will refract due to the change in speed between the two mediums, potentially changing its direction. Additionally, sound may be partially reflected at the interface between the two mediums, leading to a portion of the sound energy being reflected back into the original medium.
Slows IF it enters the water from air (and not - say - glass).
Light will bend towards the normal as it enters water from air, due to the change in speed of light when it moves from one medium to another with a different optical density.
Speed is that parameter which doesn't change.
Yes, light bends when it enters a glass of water due to the change in speed as it moves from air into water, causing it to refract. This bending of light is known as refraction.
The change in sound as you fill a glass with water is due to the different densities of air and water. As the water level rises, the amount of air in the glass decreases, causing the transmission of sound waves to change. This results in a shift in pitch and clarity of the sound produced when tapping the glass.
That would depend what it enters from. If the light is transitioning from air to water,its speed decreases. If it's going from jello to water, its speed increases.
No, light slows down when it moves from air to water due to the increase in the optical density of water compared to air. This change in speed causes the light to refract as it enters the water.
The process through which water vapor enters the air is called evaporation. Evaporation occurs when water from bodies of water, such as oceans, lakes, or rivers, changes from a liquid state to a gaseous state and enters the air.
Because it slows down when entering water.
Being a wave, sound can change its direction if it goes from one medium to another - for example, from air to water.