unit 3: energy

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12 Terms

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λ

wavelength

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V “nu”

frequency

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plank’s constant

h= 6.626 × 10^-34 Joules x sec

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speed of light

c = 2.998×10^8 meters/sec

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c=

(wavelength)(frequency) (λ times V)

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E=

hV (plank’s constant times frequency)

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wavelength (λ) =

h/mv (plank’s constant divided by mass times velocity)

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frequency (v) =

c/wavelength

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E (energy of 1 photon of light) =

hc/wavelength

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energy of photon depends on

frequency

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intensity of light corresponds to

number of photons

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wavelength =

h/mc (mass times speed of light)