Bob/Metallic Sphere (Small) With Hooks Manufacturer,Supplier and Exporter in India
Product Code : EL-PL-12100
Jlab Export is a leading Bob/Metallic Sphere (Small) With Hooks Manufacturer,and suppliers in India
Bob/Metallic Sphere (Small) With Hooks (code EL-PL-12100) is an 18 mm polished brass sphere with a hook for tying the thread of a simple pendulum. Being small and dense, it keeps air drag low compared with its weight, so the swing comes close to the point-mass pendulum of the textbook. Model JL205/02 is made in Ambala, India, by JLab.
Specifications
| Parameter | Detail |
|---|---|
| Model | JL205/02 |
| Material | Brass |
| Diameter | 18 mm |
| Fitting | Hook for the pendulum thread |
| Finish | Polished |
| Quality check | Each bob is visually inspected before dispatch |
| Pack quantity | Each (sold individually) |
| Minimum order quantity | 10 units |
| Dispatch time | Usually 4–6 working days |
| Product code | EL-PL-12100 |
| Manufacturer | Jain Laboratory Instruments Pvt Ltd (JLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
Setting Up the Simple Pendulum
Tie a fine thread to the hook, clamp the other end between the halves of a split cork held in a stand, and take the effective length L from the point of suspension to the centre of the bob: the thread and hook length plus half the 18 mm diameter. Pull the bob aside by only a few degrees, time ten oscillations and divide by ten for the period T. Repeating this for several lengths and plotting L against T² gives a straight line, and g is 4π² times its slope.
Related Pendulum Apparatus
- Vernier Calliper — stainless steel calliper for measuring the diameter of the bob.
- Stop Clock — spring-wound stop clock with a large dial for timing the swings.
- Vertical Stand With 3 Clamps — iron stand with boss head and clamps to hold the suspension.
The full set of school pendulum, timing and measuring items is under Physics Lab.
Request a Quote
Pendulum bobs can be ordered through Add To Cart; for a class set, send the number required and the delivery address on the contact page.
Last updated: 26 October 2026
