Calculate the number of photons having a wavelength of 10 (micro)m required to produce 1 kJ of energy. So far I just have the correct units:

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Calculate the number of photons having a wavelength of 10 (micro)m required to produce 1 kJ of energy.

So far I just have the correct units: wavelength = 10×10^-6 m and energy = 1×10^3 J

Would the equation be E=hc/wavelength ??

E=(1×10^3J) hc/wavelength ??

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