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# Wavelength Calculator

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

## 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 |