Q&A for How to Calculate Frequency

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What is the frequency if 80 oscillations are completed in 1 second?

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Frequency is the number of oscillations completed in a second. The answer would be 80 Hertz.

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Do atoms have a frequency and, if so, does it mean everything vibrates?

Donagan

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Atoms have energy. Energy is often characterized as vibration. Vibration possesses frequency. So, yes, everything could be thought of as vibrating at the atomic level.

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What's the definition of frequency?

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The rate at which a vibration occurs that constitutes a wave, either in a material (as in sound waves), or in an electromagnetic field (as in radio waves and light), usually measured per second. The rate at which something occurs or is repeated over a particular period of time or in a given sample.

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Question

How do I find frequency with time?

Community Answer

You can use the formula f = 1/T where T is the time period, f is the frequency.

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What is the proper definition of angular frequency?

Donagan

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It is the number of rotations or oscillations in a unit of time. It is typically measured in degrees (or radians) per second.

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How do I calculate the frequency of the wave length 600nm?

Community Answer

Use the formula c=λv. (c is the speed of light, or 2.998 x 10^8 m/s ; λ is the wavelength, or 600 nm from the given information ; and v is the frequency, the variable we are trying to find). Now it's just algebra. 2.998 x 10^8 m/s = 600 nm (v). You divide by 600 nm on both sides, of course first paying attention to units and converting 600 nm into 6 x 10^-7 m. The answer ends up being (5 x 10^14) Hz. One Hz is equal to 1/s.

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How do I find the frequency of wave lengths?

Donagan

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Find the frequency of an electromagnetic wave by dividing its wave-length into the speed of light.

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How do I calculate energy when the energy of a photon is not given?

Community Answer

To figure out the energy, use the E = hf equation. The energy of each photon is equal to Planck's constant, multiplied by the frequency of the light, h is always 6.63 * 10^-34 Joule seconds, and the frequency is 6 * 10^14 Hz. Plug those in and solve, and you get 4 * 10^-19 Joules.

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