Wavelength Frequency Formula

Wavelength Frequency Formula

To determine a wave’s frequency, apply the Wavelength To Frequency Formula. The number of cycles finished in a certain amount of time is known as Wavelength To Frequency Formula. Wavelength To Frequency Formula also indicates the number of crests that pass past a specific position in a unit of time. Wavelength To Frequency Formula is often referred to as the reciprocal of time. Hertz is used to express frequency (Hz). The frequency of the wave is calculated using the Wavelength To Frequency Formula. Students can use solved examples based on the Wavelength To Frequency Formula to better grasp it.

Wavelength Frequency Formula

The total number of times a repeated event occurs in a unit of time is known as its Wavelength To Frequency Formula. Depending on the quantities known, various Wavelength To Frequency Formula exist to calculate frequency. The terms frequency (f), time period (T), wave speed (V), and wavelength () are all found using the formula for the frequency of a wave. One cycle per second is denoted by one Hertz.

The Wavelength To Frequency Formula reads as follows: 

in Formula 1 f = 1/T is the frequency formula in terms of time, and where 

T is the cycle’s duration in seconds, while f is the frequency expressed in hertz and measured in m/s. 

Formula 2: The relationship between wavelength and wave speed is given as f = /, where m is the wavelength of the wave and m is the wave speed in m/s.

Formula 3: The expression for frequency in terms of angular frequency is f = /2, where is the angular frequency. 

A few instances that have been solved can help students better comprehend the Wavelength To Frequency Formula.

Concept of wavelength:

While the Wavelength To Frequency Formula of sound dictates pitch, the wavelength of light determines the colour. Visible light has wavelengths that can range from around 700 nm to 400 nm. The range of audible sound wavelengths is from 17 mm to 17000 mm. In comparison to visible light, audible sound has far longer wavelengths. 

Any sinusoidal wave’s wavelength can be characterised by its spatial period. This is the distance over which the wave’s shape repeats. Students need to measure the Wavelength To Frequency Formula in terms of metres or length.

The Wavelength To Frequency Formula of a recurrent occurrence is the number of times it happens within a second. As a result, students can define the Wavelength To Frequency Formula for a sinusoidal wave as the number of cycles that are completed in one second. Students can calculate frequency in Hertz or Hz units and designate it with the letters f or v. 

As students know, the wavelength of a sinusoidal wave moving at a steady speed is inversely proportional to the frequency of the wave. The formula for converting Wavelength To Frequency Formula is as follows:

Speed is equal to Frequency Wavelength. 

i.e., Wavelength=(𝑆𝑝𝑒𝑒𝑑𝑜𝑓𝑡ℎ𝑒𝑤𝑎𝑣𝑒)(𝐹𝑟𝑒𝑞𝑢𝑒𝑛𝑐𝑦𝑜𝑓𝑡ℎ𝑒𝑤𝑎𝑣𝑒)

This formula’s and the formula’s symbolic representations are as follows: 


Solved Examples

Q.1: A photon particle’s wavelength was determined to be 500 nm in a physics experiment. What will the wave’s frequency be? 

Solution: The photon particle’s wavelength is 500 nm, as stated below. 

i.e. 𝜆=500𝑛𝑚 

i.e. 𝜆=500×10−9𝑚 

additional light speed, 

C = 3×108𝑚𝑠−1 

Students will apply the following formulas to get the photon particle’s frequency: 


shifting the formula, 

f = 𝑐𝜆 

= 3×108500×10−9 

= 6×1014𝐻𝑧

Q2. Calculate the frequency of a light ray with a wavelength of 200 nanometers (nm). 

Solution: The answer is given in the problem. 

The light ray’s wavelength is 200 nm. 


additional light speed, 

C = 3×108𝑚𝑠−1 

By changing these variables in the formula above, we obtain that, 


switching up the recipe, 

f = 𝑐𝜆 

= 3×108200×10−9 

= 1.5×1014𝐻𝑧. 

The wave has a frequency of 1.5 x 1014 Hz.

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