In a young's double-slit experiment, a thin sheet of mica is placed over one of the two slits. as a result, the center of the fringe pattern (on the screen) shifts so that the center is now occupied by what was the30th dark band. the wavelength of the light in this experiment is 480 nm and the index of the mica is 1.60. the mica thickness is:

Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct

How does the kinetic energy of a charge change as the charge moves under the effect of an electric field from higher potential to lower potential? a. the kinetic energy increases. b.the kinetic energy decreases. c.the kinetic energy remains the same. d.the kinetic energy is always zero.

What is a costume plot? why is it important to a film or theater production?