The energy of an electromagnetic wave changes proportionally to which other property?

A. Frequency
B. Speed
C. Shift
D. Wavelength

I know it’s not wavelength

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.

Write a full page that sumerizes thermodynamics it’s from the website visionlearnig

Frequency of electromagnetic waves that a radio station is assigned is called