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Reflection of Light

Reflection is when light "bounces" off the the surface of an object.

Point the top of the LED toward where you would expect light to bounce off the surface. Think of a ball traveling from the light source and hitting the object. Where would it bounce to? This is where you want to hold the LED.

Do not create a shadow with your equipment or hand when measuring reflection.

Using LEDs to Measure Light Emitted from Objects

Using LEDs to Measure Transmission of Light Through Materials

Measuring reflection of light