Calculate too:
De Broglie waves

Heat transfer processes



Planck law


dPλ
W
λ
m
λ
m
S
m2
m
T
K
h
J·s
6.626E-34
c
m/s
3E8
h
J·s
6.626E-34
c
m/s
3E8
k
J/K
1.381E-23

1. Define values of all variables, besides sought quantity
2. Change units if necessary
3. Click "Calculate"




variables:

dPλ - power radiated in the range of wave length from λ to λ+dλ
h - Planck's constant
c - velocity of light in free space
λ - length of emitted wave
S - area of emitting surface
- spectral range
k - Boltzmann constant
T - temperature of radiating body



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