Question

The frequency of a wave does not change as it passes from one medium to another. What will most likely happen if a light wave moves from the air into a solid? The wavelength of the light wave will increase. The speed of the light wave will decrease. The wavelength of the light wave will remain the same. The speed of the light wave will remain the same.

Answer 1

Answer:

When waves travel from one medium to another the frequency never changes. As waves travel into the denser medium, they slow down and wavelength decreases. Part of the wave travels faster for longer causing the wave to turn. The wave is slower but the wavelength is shorter meaning frequency remains the same.

Answer 2

• The frequency of waves does not vary as they move from one medium to another. Waves slow down when they move through a denser medium, and their wavelength shortens.
• The wave turns when a portion of it moves faster for a longer period of time. Although the wave is slower, the wavelength is shorter, therefore the frequency remains constant.
• Frequency is measured in Hertz Hz (cycles per second). A sound wave's frequency is computed using the formula f= velocity (in air, water, or any other medium) divided by wavelength.
• The source of the wave determines the frequency. Because the number of cycles is specified by the source, it does not alter. The length of a second remains constant. As a result, the frequency remains unchanged.
• The wave's velocity is determined by the medium in which it travels. Because water is denser than air, sound waves travel faster through it. As a result, the wavelength must be increased to balance the equation.

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