A technician directs monochromatic light toward a single slit in an opaque barrier. The light has a wavelength of 500 nm and the slit is 0.180 mm wide. The light that passes through the slit creates a diffraction pattern on a screen, which is 1.60 m from the slit. (a) How wide (in mm) is the central maximum (the central, bright fringe), as measured on the screen?
mm
(b) How wide (in mm) is either of the two first-order bright fringes, as measured on the screen?
mm

An alpha particle with kinetic energy 12.5 mev makes a collision with lead nucleus, but it is not "aimed" at the center of the lead nucleus, and has an initial nonzero angular momentum (with respect to the stationary lead nucleus) of magnitude l = p0 b, where p0 is the magnitude of the initial momentum of the alpha particle and b=1.40×10−12 m. (assume that the lead nucleus remains stationary and that it may be treated as a point charge. the atomic number of lead is 82. the alpha particle is a helium nucleus, with atomic number 2.) what is the distance of closest approach?

An electromagnetic wave with frequency 65.0 hz travels in aninsulating magnetic material that has dielectric constant 3.64 andrelative permeability 5.18 at this frequency. the electric fieldhas amplitude 7.20 \times 10^{ - 3} {\rm v}/{\rm m}. a. what is the speed of propagation of the wave? b.what is the wavelength of the wave? c.what is the amplitude of the magnetic field? d.what is the intensity of the wave?

Mark creates a graphic organizer to review his notes aboutelectrical force.which labels belong in the regions marked x and y?