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azamat
3 years ago
10

Helppp me yfovkhovhivy

Physics
1 answer:
In-s [12.5K]3 years ago
6 0
Like a said the answer should be D XD
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An orbiting satellite can become charged by the photoelectric effect when sunlight ejects electrons from its outer surface. Sate
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Answer:

the longest wavelength of incident sunlight that can eject an electron from the platinum is 233 nm

Explanation:

Given data

Φ = 5.32 eV

to find out

the longest wavelength

solution

we know that

hf = k(maximum) +Ф   ...............1

here we consider k(maximum ) will be zero because photon wavelength max when low photon energy

so hf = 0

and hc/ λ = +Ф

so λ = hc/Ф  ................2

now put value hc = 1240 ev nm and Φ = 5.32 eV

so hc = 1240 / 5.32

hc = 233 nm

the longest wavelength of incident sunlight that can eject an electron from the platinum is 233 nm

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