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Mathematical Pendulum Demonstration Apparatus
Mathematical Pendulum Demonstration Apparatus (Product Code: SCL-219/042) is a simple pendulum apparatus used to study oscillation periods and determine the acceleration due to gravity in school and college mechanics practicals. A sphere hangs on a thread from a 500 mm mild steel rod set in a 200 x 125 mm mild steel base, and a digital stopwatch and 50 cm ruler are included for timing and length measurement. The apparatus is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM manufacturer, at its own factory in Ambala, India.
Specifications
| Parameter | Detail |
|---|---|
| Base | Mild steel, 200 x 125 mm |
| Support rod | Mild steel, 500 x 10 mm (length x diameter; listed as square) |
| Pendulum | Mathematical pendulum: sphere hung on an elongated thread; diameter listed as 25 mm |
| Additional steel rod | 150 x 0.1 mm (as listed) |
| Timing | Digital stopwatch (named twice in the contents list; quantity confirmed in the quotation) |
| Length measurement | Ruler, 50 cm long |
| Thread | Spool of cotton thread |
| Product code | SCL-219/042 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Mathematical Pendulum Apparatus Used For?
A mathematical (ideal) pendulum treats the bob as a point mass on a light, inextensible thread, and its period depends only on length and gravity: T = 2π√(L/g). Students tie the sphere to cotton thread from the spool, fix the thread to the steel rod, measure the length from the point of suspension to the centre of the sphere with the 50 cm ruler, and time several complete swings with the digital stopwatch.
Repeating the timing for different thread lengths and plotting T² against L gives a straight line whose slope equals 4π²/g, so the class can calculate g from its own data. Keep the swing angle small (under about 10°), time 20 oscillations and divide to reduce reaction-time error, and make sure the heavy base sits on a level bench so the rod stays still.
What to Specify When Ordering
- Number of apparatus sets for your class groups.
- Number of digital stopwatches wanted per set, since the contents list names the stopwatch twice.
- Extra spools of cotton thread if many groups will re-string the pendulum.
OEM Manufacturer
ScienceLab, the trading name of Jain Scientific Equipments Private Limited, is the OEM (original equipment manufacturer) of the Mathematical Pendulum Demonstration Apparatus. The mild steel base and rod assembly is fabricated at the company’s own licensed factory at Saha, Ambala, Haryana, India, and complete sets are shipped factory-direct to schools, colleges, institutions, dealers and importers.
Institutional buyers completing vendor registration can use GSTIN 06AAECJ8618A1ZT and LEI 3358004HRD1JIVXKYX49. For replacement parts or matching repeat orders, ask us — the maker answers directly. See the ScienceLab company profile for more.
Related Laboratory Equipment
Other items for oscillation and gravity experiments:
- Stopwatch, Digital — an extra timer so two students can time the same swings.
- Half Meter Scale — a spare scale for measuring thread length.
- Pendulum Clamp — holds the thread at a fixed suspension point.
- Apparatus for Determining "g" During the Free Fall of Bodies — a second method for measuring g to compare results.
- Newton’s Pendulum (Newton’s Cradle) — a pendulum demonstration of momentum and energy transfer.
Find more in the Laboratory Equipment category.
Frequently Asked Questions
What is included with the Mathematical Pendulum Demonstration Apparatus?
The Mathematical Pendulum Demonstration Apparatus includes a 200 x 125 mm mild steel base, a 500 x 10 mm mild steel rod, a pendulum sphere on a thread (diameter listed as 25 mm), a digital stopwatch, a 50 cm ruler, a 150 x 0.1 mm steel rod and a spool of cotton thread.
How is g found with the Mathematical Pendulum Demonstration Apparatus?
With the Mathematical Pendulum Demonstration Apparatus, students time the period T for several thread lengths L and plot T² against L. The graph is a straight line with slope 4π²/g, so g is calculated from the measured slope.
Does the mass of the bob change the period?
For small swings, the period of the Mathematical Pendulum Demonstration Apparatus depends on thread length and gravity, not on the mass of the sphere. Students can confirm this by keeping the length fixed and comparing results, which is a useful discussion point in the practical.
How long can the pendulum thread be?
The Mathematical Pendulum Demonstration Apparatus uses a 500 mm mild steel support rod and a 50 cm ruler, so practical thread lengths stay within the height of the rod above the bench. The cotton thread spool lets students cut new lengths for each trial.
Who manufactures the Mathematical Pendulum Demonstration Apparatus?
The Mathematical Pendulum Demonstration Apparatus, code SCL-219/042, is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab) as the OEM, at its own licensed factory at Saha, Ambala, Haryana, India, and is supplied factory-direct to buyers.
Can the pendulum apparatus be supplied for a whole class or for export?
Yes. The Mathematical Pendulum Demonstration Apparatus can be quoted in class-set and bulk quantities for schools, colleges, dealers and importers in India and international markets. Send the quantity and destination through the contact page.
Request a Quote
Request a quotation for the Mathematical Pendulum Demonstration Apparatus (SCL-219/042) on our contact page, or collect several items in the enquiry cart. Quotations are prepared directly by the manufacturer.
Last updated: 24 September 2026
