# What is the wavelength (in meters) of violet light that has a frequency of 7E14 Hz?

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- Anonymous4 months agoFavourite answer
frequency x lambda = velocity

f λ = v

(7 x 10^14) x λ = (3 x 10^8)

λ = (3/7) x 10^-6 = 428.6 nm

Color Wavelength, λ (nm)

Red 650 - 800

Orange 590 - 640

Yellow 550 - 580

Green 490 - 530

Blue 460 - 480

Indigo 440 - 450

Violet 390 - 430 <===

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- MorningfoxLv 74 months ago
Violet light (and all light) travels 299,792,458 meters per second in vacuum. Just divide that distance into 7E14 parts. In air, light is 0.03% slower, but your frequency value is not that precise.

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- Anonymous4 months ago
wavelength = speed of light / frequency

Simple calc. Include your units and convert if needed.

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- az_lenderLv 74 months ago
c = lambda*nu =>

lambda = (3.00 x 10^8 m/s)/(7 x 10^14 s^(-1))

= (3/7) x 10^(-6) m = 428 nm

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