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ENTRANCE TEST – 2012 Multiple Questions and Answers.
| 21. | Polarization of light exhibited the nature of light as | ||
| A. | Longitudinal wave | ||
| B. | Compressional wave | ||
| C. | Transverse wave | ||
| D. | Electromagnetic wave | ||
| 22. | The concentration of a sugar solution can be determined by | ||
| A. | Un-polarized light | ||
| B. | Plane polarized light | ||
| C. | Interference of light | ||
| D. | Diffraction of light | ||
| 23. | The information from one place to another can be transmitted very safely and easily by: | ||
| A. | Copper wire | ||
| B. | Aluminium wire | ||
| C. | Photodiode | ||
| D. | Optical fibre | ||
| 24. | The image of an object placed inside the focal length of a convex lens will be largest and clearest when it is at the | ||
| A. | Less than 25 cm | ||
| B. | Near point | ||
| C. | Greater than 25 cm | ||
| D. | Infinity | ||
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