Question

Particle diffraction experiments have been done with various particles. The particle produce a pattern on a screen; the pattern is centered about the direction in which the particles approached the diffraction grating. A beam of carbon-60 molecules (each contains 60 carbon molecules) is sent through a diffraction grating; the spacing between adjacent slits is 100 nm. The mass of each molecule is 1.20× 10−24 kg and the speeds with which they approached the grating is 220 m/s. Determine the angles at which the first order bright spots on the screen appear. The angles are small but can be detected.

Answer 1