Free Fall Apparatus Economy, for determination of the gravitational constant ft gft, This kit has a wooden base, 1.1m rod and a movable electro magnet, can be moved anywhere on the rod, when the ball is released the timer is triggered and stopped one the ball his landed on the base
Laser Diode For Debye-Sears Effect, Color: Green, Wavelength: Approx. 532 Nm, Power: < 5 Mw, Supply Voltage: 3 V Dc, Current Consumption: Max. 250 Ma, Dimensions: 90 mm X 17 mm Dia, With 1 M Connector Lead For Connecting ultrasonic Cw Generator.
Laser Diode For Debye-Sears Effect, Wavelength: Approx. 650 Nm, Supply Voltage: 3 V Dc, Power: < 1 Mw, Current Consumption: Max. 30 Ma, With 1 M Connector Lead And Barrel Connector For Connecting ultrasonic Cw Generator, Dimensions: 90 mm X 17 mm Diameter.