How much energy is in a wave that has a wavelength of 1.3 pm?

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How much energy is in a wave that has a wavelength of 1.3 pm?

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Answer 1 · 2016-10-19T06:07:33

$ε = h ν$ $epsilon=hnu$ , where $h = Planck's constant = 6.626 \times 10^{- 34} J \cdot s$ $h="Planck's constant"=6.626xx10^(-34)J*s$

Explanation:

Here $ν = \frac{c}{λ}$ $nu=c/lambda$ and thus $ε = ν \times 6.626 \times 10^{- 34} J \cdot s$ $epsilon=nuxx6.626xx10^(-34)J*s$

$= \frac{3.00 \times 10^{8} \cdot m s^{- 1} \times 6.626 \times 10^{- 34} J \cdot s}{1.3 \times 10^{- 12} m}$ $=(3.00xx10^8*ms^-1xx6.626xx10^(-34)J*s)/(1.3xx10^-12m)$ .

This calculation gives an answer in $Joules$ $"Joules"$ as required.

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How much energy is in a wave that has a wavelength of 1.3 pm?

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