Reflection & Refraction Tank, 1 Each

The Reflection & Refraction Tank by United Scientific is a classroom demonstrator with a 16 cm diameter acrylic water tank, a 360 degree scale and a push-button laser on a moveable arm. Thumb screws fine-tune the beam position for measuring reflection and refraction angles. The Class II laser runs on two AA batteries (not included), and an activity guide is supplied for physics lessons.