MCQOPTIONS
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MCQOPTIONS
This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
A light wave enters from air into glass. How will the frequency of the wave be affected? |
| A. | Increases |
| B. | Remains unchanged |
| C. | Decreases |
| D. | Insignificant |
| Answer» C. Decreases | |
| 2. |
Two wave-fronts intersect each other. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
When a wave undergoes reflection at a denser medium, what will be the phase change? |
| A. | 2 radian |
| B. | 0 |
| C. | radian |
| D. | 3 radian |
| Answer» D. 3 radian | |
| 4. |
If a wave undergoes refraction, what will be the phase change? |
| A. | 180<sup>o</sup> |
| B. | 270<sup>o</sup> |
| C. | 90<sup>o</sup> |
| D. | 0<sup>o</sup> |
| Answer» E. | |
| 5. |
A light wave enters from air into glass. How will the energy of the wave be affected? |
| A. | Decreases |
| B. | Increases |
| C. | Remains the same |
| D. | Independent |
| Answer» B. Increases | |
| 6. |
The wavelength of light coming from a sodium source is 589 nm. What will be its wavelength in the water? |
| A. | 625 nm |
| B. | 443 nm |
| C. | 789 nm |
| D. | 125 nm |
| Answer» C. 789 nm | |
| 7. |
The speed of the yellow light in a certain liquid is 2.4 108 m/s. Find the refractive index of the liquid. |
| A. | 6.25 |
| B. | 5.73 |
| C. | 1.25 |
| D. | 9.73 |
| Answer» D. 9.73 | |