If a photon has a frequency of 5.20 × 10üê hertz, what is the energy of the photon? given: planck's constant is 6.63 × 10è³ê joule·seconds. a-3.45x10^-19 b-7.91x10^-16 c-4.32x10^-14 d-3.43x10^-14

What is meant by the statement" the melting poin of glycerine is 13 degree celsius

Which changes of state do the labels represent? a: b: c:

Unpolarized light of intensity i_0=750w/m^2 is incident upon two polarizers. after passing through both polarizers the intensity is i_2=280w/m^2. (a) what is the intensity of the light after it passes through the first polarizer in w/m^2? (b) write an equation for the angle between the polarizers in terms of the initial (i_0) and final (i_2) intensities. (c) find the angle between the polarizers in degrees.