An emf is induced in a conducting loop of wire 1.40 m long as its shape is changed from square to circular. Find the average magnitude of the induced emf if the change in shape occurs in 0.125 s and the local 0.455-T magnetic field is perpendicular to the plane of the loop.

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.