A beam of electrons is incident õfl a Da gh and 0.5 nm wide. Find the energy they sho

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(ii) A beam of electrons is incident on a barrier 5 eV
high and 0.5 nm wide. Find the energy they should
have if 1% of them are to get through the barrier.
Transcribed Image Text:(ii) A beam of electrons is incident on a barrier 5 eV high and 0.5 nm wide. Find the energy they should have if 1% of them are to get through the barrier.
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