[Boxxxed]

Ephoton= hv = hc/wavelength

What are the units for hv and hc?

I'm trying to calculate frequency and wavelength. I've already calculated the magnitude of released energy, Ephoton. How does it equal hv unless the units are the same?

[sjb]

Ephoton= hv = hc/wavelength

What are the units for hv ...

I think you've answered your own part of this question below. What are the units of h ?

... and hc?

I'm trying to calculate frequency and wavelength. I've already calculated the magnitude of released energy, Ephoton. How does it equal hv unless the units are the same?

[Boxxxed]

h is joules per second

Ephoton is in joules

h is joules per second. hv is joules per second multiplied by a frequency unit so I'm not sure what the units come out to be. Joules per second per hertz? It's the h's that are confusing things for me in terms of units.

[Boxxxed]

I already did the calculations and got 97 nm which is correct since the question states that it is in the ultraviolet wavelength range. The math is simple enough I'm jsut trying to understand the units with the h's

[Boxxxed]

Edit

[sjb]

No, the units of h in this instance are joule seconds. So hf has units joule second * second = joules, and hc = joule second * metres per second = joule metres, which divided by energy gives?

[Boxxxed]

Frequency is in joules?

[sjb]

Frequency is in joules?

No, sorry, my mistake, thought I had put a "^-1" in there. Frequency is time^-1