MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Physics Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
At what condition, vp = vg? |
| A. | dvp/dk = 0 |
| B. | dvp/dω = 0 |
| C. | dvp/dλ = 0 |
| D. | dvp/dμ= 0 |
| Answer» D. dvp/dμ= 0 | |
| 2. |
The uncertainty in the location of a particle moving with velocity 7.28 X 107m /s is two times its de-Broglie wavelength. What is the uncertainty in measuring the velocity? |
| A. | 5.79 X 106 m/s |
| B. | 6.12 X 106 m/s |
| C. | 7.63 X 106 m/s |
| D. | 8.45 X 106 m/s |
| Answer» B. 6.12 X 106 m/s | |
| 3. |
The following is a possible wave function. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Ψ must be normalizable. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
There is an inextensible string of linear density µ. If it is given that ω = \(k\sqrt{\frac{T}{μ}}\), then what is the group velocity of the string? |
| A. | \(\sqrt{\frac{T}{μ}}\) |
| B. | ħ\(\sqrt{\frac{T}{μ}}\) |
| C. | \(\frac{\hbar}{2}\sqrt{\frac{T}{μ}}\) |
| D. | \(\frac{1}{\hbar}\sqrt{\frac{T}{μ}}\) |
| Answer» B. ħ\(\sqrt{\frac{T}{μ}}\) | |