7. If the value of h (Planck constant) is bigger, would it be easier to observe

Question

7. If the value of h (Planck constant) is bigger, would it be easier to observe the interference effects of quantons? a. Yes, because the de Brolie wavelength would be longer. b. No, because the value of Planck constant does not affect the interference effects of quantons. c. I am not sure because the relation between Planck constant and the quanton is not known. d. None of the above. 8. Consider a beam of free particles that each have a certain (non-relativistic) kinetic energy K. If we double this kinetic energy, what happens to the beam's de Broglie wavelength? a. increases by a factor of 2. b. increases by a factor of 212, c. remains the same. d. decreases by a factor of 212, e. decreases by a factor of 2. 9. The drawing below shows a sequence of Stern-Gerlach devices. By analogy to the cases discussed in the class, what do you think the probabilities that an electron entering the last device (SGx) will come out of the device's plus and minus channels, repsectively? a. 1 and 0, respectively. b.0.933 and 0.067, respectively. c. 0.75 and 0.25, respectively d.0.5 for both channels. SGx

Explanation / Answer

7] option a is correct. Larger h will mean larger value of lambda, which makes it easier to observe the effect of interference.

8]option d is correct,

h/lambda = sqrt(2mKE)

lambda = h/ sqrt(2mKE)

Related Questions

Navigate

• Browse (All)
• Browse 7
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.