| Q.52 | In a spring-mass vibrating system, the natural frequency of vibration is reduced to half the initial value, when a second spring is added to the first spring in series. What will be the ratio of stiffness of first spring to that of the second spring? | |
| Ans | 1. ![]() | |
2. ![]() | ||
3. ![]() | ||
4. ![]() |
Correct Ans: 2



