Waves And Quanta

Question 1

Atomic Number

Answer 1

Symbol Z
The number of protons in the nucleus of an atom

Question 2

Atomic Mass

Answer 2

Symbol A
It is approximately equivalent to the number of protons and neutrons in the atom.

Question 3

Half-life of a radioactive source

Answer 3

The amount of time it takes for the Activity to decrease to half of its original at t(0).

Question 4

Decay Constant

Answer 4

Is the probability of decay per unit time of a radioactive nuclide.

Question 5

Significance of the Compton Effect

Answer 5

It provided evidence that the previously thought of wave-like light exhibited particle-like behaviour such as Momentum and Energy. Confirming the validity of Einstein’s theory of relativity, which predicted this.

Question 6

Beats

Answer 6

Beats are the result of the interference of two waves of slightly different frequencies. The beat frequency equals the difference in the frequency of the two waves.