Q88 · CSIR-NET Chemistry, June 2014
Paper: CSIR-NET June 2014 · Subject: Physical Chemistry · Chapter: Quantum Chemistry · Topic: Quantum Chemistry – General · Marks: 2 · Difficulty: Hard
A quantum particle with fixed initial energy $E_{0}<V$ is allowed to strike the following four barriers separately. The transmission probability is maximum in
(a)
(b)
(c)
(d)
Answer
Answer: B ✓ checked by 4AB · confidence high
The source book printed no answer; this one was worked out and checked — see the explanation.
Explanation
T ≈ exp[−2a√(2m(V−E))/ħ], so the thinnest and lowest barrier, width A and height V, transmits most (b).
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