Chemistry, asked by amanrcky3185, 1 year ago

mass of an electron is 9.1 x10^-31 kg kinetic energy if its kinetic energy is 3x10^-25 joule calculate wavelength

Answers

Answered by QuestionSlayer
3
for this wavelength you mean De broglie wavelength
if yes then it is equal to

lambda= planks constant divided by momentum

we can write momentum
mv=(2mk)^-1/2

where k is kinetic energy


Answer should be 13m
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