Chemistry, asked by jayasreyadeshmukh1, 8 months ago

a light of wavelength 400 angstrom falls on the surface of a metal and electrons get a metered with kinetic energy 8.55 ×10 to the power -19 J. Calculate the threshold energy and threshold frequency of this metal.

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Answered by 11641vlingeshkumar

0

Answer:

i)47.058 J is the threshold energy

hv=47.

ii)v=47/h threshold frequency

h=6.6×10^-34j

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