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ENTRANCE TEST – 2009 Multiple Questions and Answers.
| 6. | Two waves of slightly different frequencies and travelling in the same direction lead to: | ||
| A. | Stationary Waves | ||
| B. | Interference | ||
| C. | Beats | ||
| D. | Both B and C | ||
| 7. | What is it that we use to calculate the speeds of distant stars and galaxies? | ||
| A. | Doppler Effect | ||
| B. | Interference | ||
| C. | Beats | ||
| D. | All of the above | ||
| 8. | In Young’s Double Slit Experiment, if the distance between slits and screen is doubled, then fringe spacing becomes: | ||
| A. | Zero | ||
| B. | One | ||
| C. | Doubles of the original value | ||
| D. | Half of the original value | ||
| 9. | The information received at the other end of a fibre can be inaccurate due to _______ of the light signal. | ||
| A. | Longer wavelengths | ||
| B. | Frequency | ||
| C. | Intensity | ||
| D. | Dispersion or Spreading | ||
| 10. | The pressure on the other sides and everywhere inside the vessel will be according to the: | ||
| A. | Pascal’s Law | ||
| B. | Hook’s Law | ||
| C. | Boyle’s Law | ||
| D. | Charles’s Law | ||
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