 
			 
			MCQOPTIONS
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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 | |