Consider a potential barrier of height 30 eV. (a) Find a width around 1.000 nm for which t...

Consider a potential barrier of height 30 eV. (a) Find a width around 1.000 nm for which there will be no reflection of 35 eV electrons incident upon the barrier, What would be the reflection probability for 36 eV electrons incident upon the same barrier? (Note: This corresponds to a difference in speed of less than .)