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`        The pendulum of a clock is replaced by a spring-mass system with the spring having spring constant 0.1 N m-1. What mass should be attached to the spring?`
5 years ago

## Answers : (1)

Navjyot Kalra
654 Points
```							Sol. . k = 0.1 N/m
T = 2π √(m/k) = 2 sec [Time period of pendulum of a clock = 2 sec]
So, 4π2+ (m/k) = 4
∴ m = k/π2 = 0.1/10 = 0.01kg = 10 gm.

```
5 years ago
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### Course Features

• 110 Video Lectures
• Revision Notes
• Test paper with Video Solution
• Mind Map
• Study Planner
• NCERT Solutions
• Discussion Forum
• Previous Year Exam Questions