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ENTRANCE TEST – 2009 Multiple Questions and Answers.
| 16. | If a certain force acts on an object and changes its kinetic energy from 65 J to 130 J, then work done by the force will be: | ||
| A. | 92.5 J | ||
| B. | 97.5 J | ||
| C. | 65 J | ||
| D. | 97.5 J | ||
| 17. | In a certain circuit, if the transistor has a collector current of 10 mA and base current of 50 μA, then the current gain of the transistor is | ||
| A. | 250 | ||
| B. | 100 | ||
| C. | 150 | ||
| D. | 200 | ||
| 18. | A signal that is applied at the inverting input terminal of an op-amplifier undergo amplification, at the output terminal with a phase shift of: | ||
| A. | 0° | ||
| B. | 270° | ||
| C. | 360° | ||
| D. | 180° | ||
| 19. | If the mass attached with a spring becomes four times, the time period of vibration becomes: | ||
| A. | One fourth | ||
| B. | 3/4 | ||
| C. | Half | ||
| D. | Double | ||
| 20. | In a microwave oven, the wave produced has a wavelength of 12 cm at a frequency of | ||
| A. | 2452 Hz | ||
| B. | 2456 Hz | ||
| C. | 2455 Hz | ||
| D. | 2450 Hz | ||
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