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ENTRANCE TEST – 2008 Multiple Questions and Answers.
| 36. | The acceleration is proportional to the displacement and is directed towards mean position in __________ motion. | ||
| A. | Gravity. | ||
| B. | Simple Harmonic | ||
| C. | Uniform | ||
| D. | Projectile | ||
| 37. | In gases, the speed of sound is inversely proportional to __________ of the density when other factors are same. | ||
| A. | Square root. | ||
| B. | Square. | ||
| C. | Third power. | ||
| D. | Third root | ||
| 38. | A watch maker uses __________ to repair the watches. | ||
| A. | Telescope. | ||
| B. | Convex Mirror. | ||
| C. | Convex lens. | ||
| D. | Concave lens. | ||
| 39. | A 2m long pipe is open at both ends. What is its harmonic frequency? | ||
| A. | 42.5 Hz. | ||
| B. | 85 Hz. | ||
| C. | 220Hz. | ||
| D. | None of these | ||
| 40. | A wire has resistance 100 Ohm at 0 oC and 200 Ohm at 100 oC. What is its temperature coefficient in K-1? | ||
| A. | -0.01. | ||
| B. | -1/273. | ||
| C. | 0.01. | ||
| D. | 1/273. | ||
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