Chapter 13 Quantum Physics Flashcards
1
Q
What is a photon?
A
a particle of light which essentially is a packet of electromagnetic radiation.
2
Q
what is the energy of a photon directly proportional to
A
frequency
3
Q
What is Planck constant
A
6.63x10^-34
4
Q
What is the equation for photon energy
A
E = Plank constant x speed of light / Wavelength
5
Q
What is another equation for photon energy?
A
E=hf
E = plank constant x frequency
6
Q
What is the energy of a photon inversly proportional to
A
It’s wavelength
7
Q
What is a electronvolt
A
energy transferred to or from an electron when it moves through a potential difference of 1V
8
Q
what is work done on an electron as it moves through p.d of 1 V
A
1V x 1.6x10^-19 = 1.6x10^-19
