We motivated the model of the electron in an infinite square well with the observation that ""quantum dot"" nanoparticles with difference diameters emit different wavelengths of light when exposed to the same UV radiation (fluorescence). Briefly explain how the simple 1D infinite square well model provides a qualitative explanation for this phenomenon.

Avery long solenoid of inner radius 2.75 cm creates an oscillating magnetic field of the form = for this solenoid, =0.00425 t and =319 rad/s. (a)what is the maximum value of the induced electric field at a perpendicular distance 1.45 cm from the axis of the solenoid? (b) what is the maximum value of the inducted electric field at a point 5.85 cm perpendicular from the axis of the solenoid?