Author Question: In a two-slit experiment, the slit separation is 3.00 10-5 m. The interference pattern is created ... (Read 72 times)

mmm · **on:** Jul 29, 2018

In a two-slit experiment, the slit separation is 3.00 10-5 m. The interference pattern is created on a screen that is 2.00 m away from the slits.

If the seventh bright fringe on the screen is a linear distance of 10.0 cm away from the central fringe, what is the wavelength of the light?
A)

100 nm
B)

204 nm
C)

214 nm
D)

224 nm
E)

234 nm

Question 2

The position of a mass that is oscillating on a spring is given by x = (12.3 cm) cos(1.26s-1)t. What is the velocity of the mass when t = 0.815 s?

A)

- 13.3 cm/s

B)

13.3 cm/s

C)

8.02 cm/s

D)

- 8.02 cm/s

E)

0 cm/s