The first three particle-in-a- box wave functions are shown. For which wave function is the probability of finding the particle near x = L/2 the smallest?

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Presentation transcript:

The first three particle-in-a- box wave functions are shown. For which wave function is the probability of finding the particle near x = L/2 the smallest? Q n = 1 2. n = 2 3. n = 3 4. the probability is the same (and nonzero) for each wave function 5. the probability is zero for each wave function

The first three particle-in-a- box wave functions are shown. For which wave function is the probability of finding the particle near x = L/2 the smallest? A n = 1 2. n = 2 3. n = 3 4. the probability is the same (and nonzero) for each wave function 5. the probability is zero for each wave function

The first three particle-in-a- box wave functions are shown. For which wave function is the average value of the x-component of momentum the greatest? Q n = 1 2. n = 2 3. n = 3 4. the value is the same (and nonzero) for each wave function 5. the value is zero for each wave function

The first three particle-in-a- box wave functions are shown. For which wave function is the average value of the x-component of momentum the greatest? A n = 1 2. n = 2 3. n = 3 4. the value is the same (and nonzero) for each wave function 5. the value is zero for each wave function

The first three wave functions for a finite square well are shown. For which wave function is the probability of finding the particle outside the square well the smallest? Q n = 1 2. n = 2 3. n = 3 4. the probability is the same (and nonzero) for each wave function 5. the probability is zero for each wave function

The first three wave functions for a finite square well are shown. For which wave function is the probability of finding the particle outside the square well the smallest? A n = 1 2. n = 2 3. n = 3 4. the probability is the same (and nonzero) for each wave function 5. the probability is zero for each wave function

The illustration shows a possible wave function for a particle tunneling through a potential-energy barrier of width L. The particle energy is less than the barrier height U 0. In which region is it impossible to find the particle? Q x < 0 2. between x = 0 and x = L 3. x > L 4. misleading question — the particle can be found in all three regions

The illustration shows a possible wave function for a particle tunneling through a potential-energy barrier of width L. The particle energy is less than the barrier height U 0. In which region is it impossible to find the particle? A x < 0 2. between x = 0 and x = L 3. x > L 4. misleading question — the particle can be found in all three regions

The illustration shows the first six energy levels of a harmonic oscillator. Which statements about a quantum-mechanical harmonic oscillator are true? Q the particle can be found at positions beyond the region allowed by Newtonian mechanics 2. the wave functions do not have a definite wavelength 3. all of the wave functions are equal to zero at x = 0 4. both 1. and 2. are true 5. all of 1., 2., and 3. are true

The illustration shows the first six energy levels of a harmonic oscillator. Which statements about a quantum-mechanical harmonic oscillator are true? A the particle can be found at positions beyond the region allowed by Newtonian mechanics 2. the wave functions do not have a definite wavelength 3. all of the wave functions are equal to zero at x = 0 4. both 1. and 2. are true 5. all of 1., 2., and 3. are true