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3 years ago

Please help 23 also 29 the answer choices are reflection or refraction your fraction absorption

Physics

1 answer:

monitta3 years ago

4 0

Answer:

23. Option B. Hertz

29. Refraction.

Explanation:

23. Determination of the unit of measurement of frequency.

Frequency is simply defined as the number of oscillation made in one second. Mathematically, frequency can be represented as:

Frequency = 1/period

f = 1/T

Period is measured in seconds.

Thus, the unit of frequency becomes

f = 1/T

f = 1/s = s¯¹ (Hertz)

Therefore, the unit of frequency is Hertz.

29. When a wave enters a new medium, the speed of the wave is uttered. This leads to the bending of the wave. When this occurs, we can say refraction has taken place.

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4 years ago

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3 years ago

Speed is

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4 years ago

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Answer:

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Explanation:

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3 years ago