Quantum optics

Photon energy

$$E = m\cdot c^{2}$$

E - energy
m - mass
c - speed of light

Find It is known that:

Calculate 'Ε'

Photon energy

$$E = h\cdot \nu$$

E - energy
h - Planck's constant
ν - frequency

Find It is known that:

Calculate 'E'

Photon energy

$$E = \frac{h\cdot c}{\lambda}$$

E - energy
h - Planck's constant
c - speed of light
λ - wave length

Find It is known that:

Calculate 'E'

Photon energy

$$E = \hbar\cdot \omega$$

E - energy
ℏ - small Planck constant
ω - angular speed (velocity)

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Calculate 'Ε'

Small Planck constant

$$\hbar = \frac{h}{2\cdot \pi}$$

ℏ - small Planck constant
h - Planck's constant

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Calculate 'ℏ'

Photon impulse

$$p = m\cdot c$$

p - impulse
m - mass
c - speed of light

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Calculate 'p'

Photoeffect: decelerating(retarding) voltage

$$\frac{m\cdot v^{2}}{2} = e\cdot U$$

m - mass
v - speed (velocity)
e - electron charge
U - voltage

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Calculate 'm'

Photoeffect: energy conservation law

$$h\cdot \nu = A+\frac{m\cdot v^{2}}{2}$$

h - height
ν - frequency
A - work
m - mass
v - speed (velocity)

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Calculate 'h'

Photoeffect: red limit

$$h\cdot \nu = A$$

h - height
ν - frequency
A - work

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Calculate 'h'

Photoeffect: red limit: light wave length

$$\frac{h\cdot c}{\lambda} = A$$

h - Planck's constant
c - speed of light
λ - wave length
A - work

Find It is known that:

Calculate 'h'

Light pressure

$$p = \frac{P_0\cdot (1+R)}{c}$$

p - pressure
P_0 - power of the incident electromagnetic wave
R - reflection coefficient
c - speed of light

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Calculate 'p'

Power of the incident electromagnetic wave

$$P_0 = \frac{E}{S\cdot t}$$

P_0 - power of the incident electromagnetic wave
E - energy of the incident light
S - area
t - time

Find It is known that:

Calculate 'P_0'