the height of the potential step is 8 ev . calculate the percentage of particles reflected when 9 ev energy of particles is sent towards that potential step.
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The standard height = 8eV
The energy sent towards the potential is 9eV.
The energy absorbed must be 8 eV.
The rest is reflected away.
From 9 eV, the energy reflected away is :
9 - 8 = 1
We express this as a percentage of the height potential step.
This equals to :
1/8 × 100 = 12.5%
= 12.5%
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