Calculate the wavelength for red light

Thread starter max2040uk
Start date Oct 2, 2009
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Light Wavelength

AI Thread Summary

The frequency of red light is given as 430 THz, and the wavelength is calculated using the formula (3*10^8) / (430*10^12). The initial calculation resulted in a wavelength of 6.98, but a mistake was identified regarding the powers of ten. The correct wavelength, accounting for the error, is approximately 7.0 x 10^-7 meters. This highlights the importance of careful attention to scientific notation in calculations.

Oct 2, 2009

max2040uk

Homework Statement

The frequency of red light is 430THz calculate its wave length. Is the answer below correct?

Homework Equations

(3*10^8) / (430*10^12) = wave length

The Attempt at a Solution

(3*10^8) / (430*10^12) = 6.98 to 1 Decimal Place

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Oct 2, 2009

Doc Al

Mentor

You are off by some power of ten. What's 10⁸/10¹²?

Oct 2, 2009

max2040uk

Hi thanks for the reply at the end of the calculator is said e-7 (10^-7) stupid mistake. Thank you for your time :)

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