The equation v = fλ applies to all types of harmonic waves, including electromagnetic waves such as light and microwaves, which travel at 3.0 x 10⁸ m/s in a vacuum. a) The range of wavelengths of light to which eye is sensitive to is about 400nm to 700 nm. What are the frequencies that correspond to these wavelengths?

b) Find the frequency of a microwave that has a wavelength of 3.0 cm.

Asquare isothermal chip is of width w=5 mm on a side and is mounted in a substrate such that its side and back surfaces are well insulated; the front surface is exposed to the flow of a coolant at tinf=15 °c. from reliability considerations, the chip temperature must not exceed t=85 °c. if the coolant is air and the corresponding convection coefficient is h=200 w/m2 x k, what is the maximum allowable "power" of the chip? if the coolant is a liquid for which h=3000 w/m2 x k, what is the maximum allowable power of the chip?