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This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
1. |
Identify the expression for Bragg’s law from the following. |
A. | 2d cosθ=nλ |
B. | 2d sinθ=nλ |
C. | 2d sinθ=\(\frac {n}{\lambda }\) |
D. | 2d cosθ=\(\frac {n}{\lambda }\) |
Answer» C. 2d sinθ=\(\frac {n}{\lambda }\) | |
2. |
Intensity is different for different angles of scattering in the Davisson – Germer experiment. |
A. | True |
B. | False |
Answer» B. False | |
3. |
Which crystal is used in the Davisson – Germer experiment? |
A. | Aluminum |
B. | Nickel |
C. | Cobalt |
D. | Zinc |
Answer» C. Cobalt | |
4. |
Which of the following is used in the Davisson – Germer experiment? |
A. | Double slit |
B. | Single slit |
C. | Electron gun |
D. | Electron microscope |
Answer» D. Electron microscope | |
5. |
Which theory is confirmed by the Davisson – Germer experiment? |
A. | de – Broglie theory |
B. | Newton’s theory |
C. | Einstein’s theory |
D. | Planck’s theory |
Answer» B. Newton’s theory | |