The change in fraction of the particles that are reflected changes as the barrier height is reduced to
Answer to Problem 1OQ
Option (b), It decreases.
Explanation of Solution
Write the expression for the transmission coefficient.
Here,
Write the equation for the reflection coefficient.
Here,
When the barrier height is reduced, the difference between the barrier height and the energy of the particles decreases. According to equation (I), T increases with decrease in
Conclusion:
Since reflection coefficient decreases with decrease in potential barrier, option (b) is correct.
Since the reflection coefficient decreases with decrease in potential barrier, option (a) is incorrect.
Since the reflection coefficient changes with decrease in potential barrier, option (c) is incorrect.
Since the reflection coefficient changes with decrease in potential barrier, option (d) is incorrect.
Since the reflection coefficient changes with decrease in potential barrier, option (e) is incorrect.
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Physics for Scientists and Engineers with Modern Physics, Technology Update
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