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Instruments
voltmeter or ammeter with selection of various ranges for each mode
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5N/250g Newton Force Meter Spring Scale
1pcs Concave Lens Mirror | 50mm Diameter and 75mm Focal Length Connector InstrumentsHigh Quality Glass: Made from durable and high quality glass, this Double Concave Lens Mirror is designed to last and provide accurate and reliable results in a variety of scientific applications. 50mm Diameter: With a diameter of 50mm, this lens is perfect for use in a range of optical experiments, including refraction, reflection, and more. 75mm Focal: Featuring a 75mm focal, this lens is an ideal tool for creating focused images and light beams.
