 # Wavelength Calculator

To use wavelength calculator, select the term you want to calculate, enter the known values, and click calculate button

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## Wavelength Calculator

Wavelength calculator is used to calculate the wavelength (λ) of a wave based on its frequency (f) and velocity (v).

## What is Wavelength?

Distance between two consecutive crests (or troughs) of a wave is called Wavelength. It is denoted by the Greek letter λ (lambda).

### Formula of Wavelength:

λ = v / f

where,

• λ is the wavelength,
• v is the velocity of the wave,
• f is the frequency of the wave.

## Examples Of Wavelength

Example 1:

Calculate the wavelength of light in water having a wave frequency of 12 Hz and wave velocity of 220m/s.

Solution

Step 1: Take the given data.

Wave frequency = 12 Hz

Wave velocity = 220m/s

Step 2: Take the general formula of wavelength and substitute the values of frequency and velocity.

λ = v / f

λ = 220 / 12

λ = 55/3

λ = 18.33w

Example 2:

Calculate the wave velocity of light in glass having a wave frequency of 16 Hz and wavelength of 10w.

Solution

Step 1: Take the given data.

Wave frequency = 16 Hz

Wave length = 10w

Step 2: Take the general formula of wavelength, rearrange it, and substitute the values of frequency and wavelength to it.

λ = v / f

λ * f = v

v = 10 x 16

v = 160m/s

## Wavelength of Different Colors:

 Color Wavelength (nm) Frequency (10^14 Hz) Energy (eV) Red 620-750 4.00-3.99 1.99-1.65 Orange 590-620 5.08-4.84 2.10-2.00 Yellow 570-590 5.26-5.08 2.17-2.10 Green 495-570 6.06-5.26 2.51-2.17 Blue 450-495 6.67-6.06 2.75-2.51 Violet 380-450 7.89-6.67 3.26-2.75

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