These are the two questions but in the answer he used some equation (blue circled) that we didn’t learn. I’m pretty sure that is converted equation from original equation that my teacher teaches but I have no clue how he got that equation. Can you also draw a diagram for me…?
1. Two point sources are 19.0cm apart and operating in phase with a common frequency of 6.50 hz. The perpendicular distance from the right bisector to a point on the fourth nodal line in the interference pattern is 28.0 cm. The distance from the midpoint between the two sources to the same point is 74.0 cm.
a. Calculate the wavelength of the waves.
b. Calculate the speed of the waves.
2. A scientist sets up a double-slit apparatus and observes a pattern of alternating bright and dark fringes on the optical screen. Using diagrams and bullet points, explain how this pattern forms. Be sure to discuss phase in your response.
