Double-Slit Equation Quiz

What does the variable 'n' represent in the double-slit equation?

• The distance from the diffraction grating to the wall

• The distance between the double slits

• The number of points of constructive interference from the central point

• The wavelength of the light used

In the first example problem, what is the distance from the central point to the second point of constructive interference?

• 0.4 meters

• 0.3 meters

• 0.5 meters

• 0.16 meters

What is the wavelength of the red light used in the first example problem?

• 800 nanometers

• 500 nanometers

• 600 nanometers

• 700 nanometers

In the second example problem, what is the distance between the two slits?

• 0.03 meters

• 0.02 meters

• 0.04 meters

• 0.01 meters

What is the wavelength of the green light used in the second example problem?

• 400 nanometers

• 700 nanometers

• 500 nanometers

• 600 nanometers

In the third example problem, how many points of constructive interference occur between the center and a point 4 cm away?

• 6 points

• 5 points

• 4 points

• 3 points

What is the wavelength of light used in the third example problem?

• 600 nanometers

• 500 nanometers

• 400 nanometers

• 300 nanometers

In the fourth example problem, if the wavelength doubles and the distance to the wall triples, what happens to the distance to each maximum?

• It is multiplied by 12

• It is halved

• It remains the same

• It is tripled

What happens to the distance between slits in the fourth example problem?

• It is divided by 2

• It is doubled

• It is tripled

• It remains the same

What is the main focus of the fourth example problem?

• Proportional reasoning with changes in variables

• Calculating the distance to the second point of constructive interference

• Determining the distance between slits

• Finding the number of points of constructive interference