Wiki User
∙ 14y agobest way to write above question is:
Work function = 6.08*10^-19J This is energy Min required to free one electron.
what max wavelength is requred to cause this event?
remember wavlength inversely proportional to energy of photon via planks constant h
hence E = hV but E = hc / (wavelength)
where
E = energy photon
V = frequency of photon
h = planks constant = 6.626068 × 10-34 m2 kg / s
now, because Min energy is proportional to max wavelength, which is related to frequency:
V = E/h = (6.08*10^-19J) / ( 6.626068 × 10-34 m2 kg / s)
= 9.176 * 10^14hz
now C = V*(wavelength)
so (wavelength) = (3*10^8m/s) / (9.176*10^14hz) =
= 3.27*10^-7 meters
between 0.7 and 300 micrometres is infra-red, but this is 0.327 micrometers!! This seems like a very large wavelength, and therefore low energy value.
Wiki User
∙ 14y agoThe energy required to remove an electron from a metal surface is equal to the energy of a photon that can cause this effect. You can use the equation E = hc/λ, where E is the energy, h is Planck's constant, c is the speed of light, and λ is the wavelength. Rearranging the equation to solve for λ, you can find the maximum wavelength by substituting the given energy value.
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Examples: strong acids, strong bases, radioactive chemicals.
Yes. Nickel is a Carcinogen, which means it is capable of causing cancer.
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Pathogens .
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staphylococcus epidermidis
bacteria or viruses, which are capable of causing disease
Infectious
The word pathogen means to be disease causing.
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They are capable of causing fires and making animals ill.
venom
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No such thing. ANY firearm is capable of causing death.
allergen