**Objective**

**Equipment.**

**Assignment**

1. In a Young's double slit experiment, a screen is placed 7.00 m behind a double slit of 0.200 mm separation. If a light of 589.0 nm shines on the slit, find the value of the angle for the first three bright fringes

2. In a Young's double slit experiment, a screen is placed 5.00 m behind a double slit of 0.250 mm seperation. If a light of 589.0 nm shines on the slit, find the value of the angle for the first three dark fringes

3. In a Young's double slit experiment, a screen is placed 6.00 m behind a double slit of 0.387 mm seperation. If a light of 589.0 nm shines on the slit, find the value of the x, the distance from the center of the screen to the center of the the first 3 bright fringes.

4. Adjacent bright fringes from a double slit separated by 0.700 mm are measured to be 1.71 mm apart on a screen 1.00 m away. What is the wavelength of light used