Physics Experiment with Green Laser

What is the purpose of using a diffraction grating in the experiment with the green laser?

• To change the color of the laser

• To increase the power of the laser

• To measure the distance to the garage door

• To create multiple points for analysis

How many lines per millimeter does the diffraction grating used in the experiment have?

• 200 lines per millimeter

• 1000 lines per millimeter

• 500 lines per millimeter

• 100 lines per millimeter

What is the distance between the garage door and the laser in the experiment?

• 118.5 centimeters

• 500 centimeters

• 424.5 centimeters

• 300 centimeters