9. You put a straw into a glass of water at an angle. As the straw enters the water, you notice that it appears to be broken in two at the boundary between the water in the glass and the air in the room. Which term below correctly describes this phenomena?
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1 point
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Reflection
Diffusion
Interference
Refraction
Refraction is the bending of light as it passes from one medium to another medium with a different optical density, such as air to water. When light travels from air into water, it changes speed and direction, causing the straw to appear bent or broken at the boundary between the air and water. This phenomenon is known as refraction.
The energy of an electromagnetic wave is directly proportional to its frequency. The higher the frequency of a wave, the higher its energy. In this case, Wave A has the highest frequency, and therefore the highest energy among the four waves listed in the table.
Refraction
why is that the answer
Below is a table of four electromagnetic waves and their respective wavelengths and frequencies. Which of the following waves has the GREATEST amount energy?
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1 point
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Wave A
Wave B
Wave C
Wave D
Wave A has the greatest amount of energy.
why though
Which of the following is a DISADVANTAGE of a digital photo album?
Less degradation over time
Requires power to use
Easier to make copies
Quick options for adding effects