Monochromatic light falls on two very narrow slits 0.044 mm apart. successive fringes on a screen 6.50 m away are 8.1 cm apart near the center of the pattern. part a) determine the wavelength of the light. express your answer to two significant figures and include the appropriate units part b) determine the frequency of the light express your answer to two significant figures and include the appropriate units ?

Certain bacteria (such as aquaspirillum magnetotacticum) tend to swim toward the earth’s geographic north pole because they contain tiny particles, called magnetosomes, that are sensitive to a magnetic field. if a transmission line carrying 100 a is laid underwater, at what range of distances would the magnetic field from this line be great enough to interfere with the migration of these bacteria? (assume that a field less than 5% of the earth’s field would have little effect on the bacteria. take the earth’s field to be 5.0 * 10-5 t, and ignore the effects of the seawater.)