What is the frequency of light with wavelength $2.50 \cdot 10^{- 7}$ $2.50 * 10^-7$ m?

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What is the frequency of light with wavelength $2.50 \cdot 10^{- 7}$ $2.50 * 10^-7$ m?

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Answer 1 · 2015-11-14T18:52:15

We can use the formula: $ν = \frac{c}{λ}$ $nu=c/lambda$

Explanation:

Here, $c$ $c$ = speed of light = $3 \cdot 10^{8} \frac{m}{s}$ $3*10^8 m/s$
And $λ$ $lambda$ = wavelength of light used = $2.50 \cdot 10^{- 7} m$ $2.50*10^-7 m$

Therefore,

$ν = \frac{c}{λ}$ $nu=c/lambda$
$\Rightarrow ν = \frac{3 \cdot 10^{8}}{2.50 \cdot 10^{- 7}} s^{- 1}$ $=>nu=(3*10^8)/(2.50*10^-7) s^-1$

$\Rightarrow ν = 1.2 \cdot 10^{15} s^{- 1}$ $=> nu= 1.2*10^15 s^-1$

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What is the frequency of light with wavelength $2.50 \cdot 10^{- 7}$ $2.50 * 10^-7$ m?

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