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ENTRANCE TEST – 2012 Multiple Questions and Answers.
| 26. | When the length of a simple pendulum is doubled, find the ratio of the new frequency to the old frequency? | ||
| A. | 1/4 | ||
| B. | 1/2 | ||
| C. | √2 | ||
| D. | 1/√2 | ||
| 27. | The ratio of tensile strength to tensile strain is called | ||
| A. | Modulus of elasticity | ||
| B. | Bulk Modulus | ||
| C. | Young’s Modulus | ||
| D. | Shear Modulus | ||
| 28. | A wire is stretched by a force ‘F’ which causes an extension Δl, the energy stored in the wire is: | ||
| A. | FΔl | ||
| B. | 2FΔl | ||
| C. | ½ FΔl2 | ||
| D. | ½ FΔl | ||
| 30. | If ‘Q’ is the amount of heat supplied to a system and ‘W’ is the work done, then change in internal energy can be defined as | ||
| A. | Q/W | ||
| B. | Q – W | ||
| C. | W/Q | ||
| D. | 1 + Q/W | ||
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