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Visually Inspect LEDs

How does an LED work? Before testing the near infrared (IR) and red LEDs, make 3 sketches of each from the top and two views from the side (perpendicular to each other). What are the differences and similarities between the two LEDs?

Materials

    Red LED
    Near Infrared (IR) LED


IR LED

 

 

 

Top

 

 

 

 

Side 1

 

 

 

 

Side 2

Red LED

 

 

 

Top

 

 

 

 

Side 1

 

 

 

 

Side 2