Planks constant Flashcards
(4 cards)
1
Q
Particle nature of light
A
Light arrives in particles called photons
2
Q
What is a photon ?
A
A packet or quantum of electromagnetic waves
3
Q
What is the energy of photons given by ?
A
E=hf
h is Planck constant
4
Q
What is the electron volt ?
A
The energy acquired by an electron when it passes through pd of 1 V
